patman: Update errors and warnings to use stderr
When warnings and errors are produced by tools they should be written to
stderr. Update the tout implementation to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index 7c8b3eb..928d360 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -3232,7 +3232,7 @@
with test_util.capture_sys_output() as (stdout, stderr):
control.ReplaceEntries(updated_fname, None, outdir, [])
self.assertIn("Skipping entry '/u-boot' from missing file",
- stdout.getvalue())
+ stderr.getvalue())
def testReplaceCmdMap(self):
"""Test replacing a file fron an image on the command line"""