test/py: use " for docstrings

Python's coding style docs indicate to use " not ' for docstrings.

test/py has other violations of the coding style docs, since the docs
specify a stranger style than I would expect, but nobody has complained
about those yet:-)

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/test/py/multiplexed_log.py b/test/py/multiplexed_log.py
index 5059bbf..c2a3b89 100644
--- a/test/py/multiplexed_log.py
+++ b/test/py/multiplexed_log.py
@@ -14,12 +14,12 @@
 mod_dir = os.path.dirname(os.path.abspath(__file__))
 
 class LogfileStream(object):
-    '''A file-like object used to write a single logical stream of data into
+    """A file-like object used to write a single logical stream of data into
     a multiplexed log file. Objects of this type should be created by factory
-    functions in the Logfile class rather than directly.'''
+    functions in the Logfile class rather than directly."""
 
     def __init__(self, logfile, name, chained_file):
-        '''Initialize a new object.
+        """Initialize a new object.
 
         Args:
             logfile: The Logfile object to log to.
@@ -29,26 +29,26 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.logfile = logfile
         self.name = name
         self.chained_file = chained_file
 
     def close(self):
-        '''Dummy function so that this class is "file-like".
+        """Dummy function so that this class is "file-like".
 
         Args:
             None.
 
         Returns:
             Nothing.
-        '''
+        """
 
         pass
 
     def write(self, data, implicit=False):
-        '''Write data to the log stream.
+        """Write data to the log stream.
 
         Args:
             data: The data to write tot he file.
@@ -60,33 +60,33 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.logfile.write(self, data, implicit)
         if self.chained_file:
             self.chained_file.write(data)
 
     def flush(self):
-        '''Flush the log stream, to ensure correct log interleaving.
+        """Flush the log stream, to ensure correct log interleaving.
 
         Args:
             None.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.logfile.flush()
         if self.chained_file:
             self.chained_file.flush()
 
 class RunAndLog(object):
-    '''A utility object used to execute sub-processes and log their output to
+    """A utility object used to execute sub-processes and log their output to
     a multiplexed log file. Objects of this type should be created by factory
-    functions in the Logfile class rather than directly.'''
+    functions in the Logfile class rather than directly."""
 
     def __init__(self, logfile, name, chained_file):
-        '''Initialize a new object.
+        """Initialize a new object.
 
         Args:
             logfile: The Logfile object to log to.
@@ -96,18 +96,18 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.logfile = logfile
         self.name = name
         self.chained_file = chained_file
 
     def close(self):
-        '''Clean up any resources managed by this object.'''
+        """Clean up any resources managed by this object."""
         pass
 
     def run(self, cmd, cwd=None, ignore_errors=False):
-        '''Run a command as a sub-process, and log the results.
+        """Run a command as a sub-process, and log the results.
 
         Args:
             cmd: The command to execute.
@@ -120,7 +120,7 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         msg = "+" + " ".join(cmd) + "\n"
         if self.chained_file:
@@ -163,13 +163,13 @@
             raise exception
 
 class SectionCtxMgr(object):
-    '''A context manager for Python's "with" statement, which allows a certain
+    """A context manager for Python's "with" statement, which allows a certain
     portion of test code to be logged to a separate section of the log file.
     Objects of this type should be created by factory functions in the Logfile
-    class rather than directly.'''
+    class rather than directly."""
 
     def __init__(self, log, marker):
-        '''Initialize a new object.
+        """Initialize a new object.
 
         Args:
             log: The Logfile object to log to.
@@ -177,7 +177,7 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.log = log
         self.marker = marker
@@ -189,18 +189,18 @@
         self.log.end_section(self.marker)
 
 class Logfile(object):
-    '''Generates an HTML-formatted log file containing multiple streams of
-    data, each represented in a well-delineated/-structured fashion.'''
+    """Generates an HTML-formatted log file containing multiple streams of
+    data, each represented in a well-delineated/-structured fashion."""
 
     def __init__(self, fn):
-        '''Initialize a new object.
+        """Initialize a new object.
 
         Args:
             fn: The filename to write to.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.f = open(fn, "wt")
         self.last_stream = None
@@ -217,7 +217,7 @@
 """)
 
     def close(self):
-        '''Close the log file.
+        """Close the log file.
 
         After calling this function, no more data may be written to the log.
 
@@ -226,7 +226,7 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.f.write("""\
 </tt>
@@ -241,7 +241,7 @@
                  "".join(chr(c) for c in range(127, 256)))
 
     def _escape(self, data):
-        '''Render data format suitable for inclusion in an HTML document.
+        """Render data format suitable for inclusion in an HTML document.
 
         This includes HTML-escaping certain characters, and translating
         control characters to a hexadecimal representation.
@@ -251,7 +251,7 @@
 
         Returns:
             An escaped version of the data.
-        '''
+        """
 
         data = data.replace(chr(13), "")
         data = "".join((c in self._nonprint) and ("%%%02x" % ord(c)) or
@@ -260,14 +260,14 @@
         return data
 
     def _terminate_stream(self):
-        '''Write HTML to the log file to terminate the current stream's data.
+        """Write HTML to the log file to terminate the current stream's data.
 
         Args:
             None.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.cur_evt += 1
         if not self.last_stream:
@@ -280,7 +280,7 @@
         self.last_stream = None
 
     def _note(self, note_type, msg):
-        '''Write a note or one-off message to the log file.
+        """Write a note or one-off message to the log file.
 
         Args:
             note_type: The type of note. This must be a value supported by the
@@ -289,7 +289,7 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._terminate_stream()
         self.f.write("<div class=\"" + note_type + "\">\n<pre>")
@@ -297,14 +297,14 @@
         self.f.write("\n</pre></div>\n")
 
     def start_section(self, marker):
-        '''Begin a new nested section in the log file.
+        """Begin a new nested section in the log file.
 
         Args:
             marker: The name of the section that is starting.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._terminate_stream()
         self.blocks.append(marker)
@@ -314,7 +314,7 @@
                      "\">Section: " + blk_path + "</div>\n")
 
     def end_section(self, marker):
-        '''Terminate the current nested section in the log file.
+        """Terminate the current nested section in the log file.
 
         This function validates proper nesting of start_section() and
         end_section() calls. If a mismatch is found, an exception is raised.
@@ -324,7 +324,7 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         if (not self.blocks) or (marker != self.blocks[-1]):
             raise Exception("Block nesting mismatch: \"%s\" \"%s\"" %
@@ -337,7 +337,7 @@
         self.blocks.pop()
 
     def section(self, marker):
-        '''Create a temporary section in the log file.
+        """Create a temporary section in the log file.
 
         This function creates a context manager for Python's "with" statement,
         which allows a certain portion of test code to be logged to a separate
@@ -352,96 +352,96 @@
 
         Returns:
             A context manager object.
-        '''
+        """
 
         return SectionCtxMgr(self, marker)
 
     def error(self, msg):
-        '''Write an error note to the log file.
+        """Write an error note to the log file.
 
         Args:
             msg: A message describing the error.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("error", msg)
 
     def warning(self, msg):
-        '''Write an warning note to the log file.
+        """Write an warning note to the log file.
 
         Args:
             msg: A message describing the warning.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("warning", msg)
 
     def info(self, msg):
-        '''Write an informational note to the log file.
+        """Write an informational note to the log file.
 
         Args:
             msg: An informational message.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("info", msg)
 
     def action(self, msg):
-        '''Write an action note to the log file.
+        """Write an action note to the log file.
 
         Args:
             msg: A message describing the action that is being logged.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("action", msg)
 
     def status_pass(self, msg):
-        '''Write a note to the log file describing test(s) which passed.
+        """Write a note to the log file describing test(s) which passed.
 
         Args:
             msg: A message describing passed test(s).
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("status-pass", msg)
 
     def status_skipped(self, msg):
-        '''Write a note to the log file describing skipped test(s).
+        """Write a note to the log file describing skipped test(s).
 
         Args:
             msg: A message describing passed test(s).
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("status-skipped", msg)
 
     def status_fail(self, msg):
-        '''Write a note to the log file describing failed test(s).
+        """Write a note to the log file describing failed test(s).
 
         Args:
             msg: A message describing passed test(s).
 
         Returns:
             Nothing.
-        '''
+        """
 
         self._note("status-fail", msg)
 
     def get_stream(self, name, chained_file=None):
-        '''Create an object to log a single stream's data into the log file.
+        """Create an object to log a single stream's data into the log file.
 
         This creates a "file-like" object that can be written to in order to
         write a single stream's data to the log file. The implementation will
@@ -456,12 +456,12 @@
 
         Returns:
             A file-like object.
-        '''
+        """
 
         return LogfileStream(self, name, chained_file)
 
     def get_runner(self, name, chained_file=None):
-        '''Create an object that executes processes and logs their output.
+        """Create an object that executes processes and logs their output.
 
         Args:
             name: The name of this sub-process.
@@ -470,12 +470,12 @@
 
         Returns:
             A RunAndLog object.
-        '''
+        """
 
         return RunAndLog(self, name, chained_file)
 
     def write(self, stream, data, implicit=False):
-        '''Write stream data into the log file.
+        """Write stream data into the log file.
 
         This function should only be used by instances of LogfileStream or
         RunAndLog.
@@ -491,7 +491,7 @@
 
         Returns:
             Nothing.
-        '''
+        """
 
         if stream != self.last_stream:
             self._terminate_stream()
@@ -507,13 +507,13 @@
         self.last_stream = stream
 
     def flush(self):
-        '''Flush the log stream, to ensure correct log interleaving.
+        """Flush the log stream, to ensure correct log interleaving.
 
         Args:
             None.
 
         Returns:
             Nothing.
-        '''
+        """
 
         self.f.flush()