buildman: Fix a typo in TestSettingsHasPath()

The function comment should say 'buildman'. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/tools/buildman/toolchain.py b/tools/buildman/toolchain.py
index 38876c2..02fbeb5 100644
--- a/tools/buildman/toolchain.py
+++ b/tools/buildman/toolchain.py
@@ -487,7 +487,7 @@
         return stdout.splitlines()[0][:-1]
 
     def TestSettingsHasPath(self, path):
-        """Check if builmand will find this toolchain
+        """Check if buildman will find this toolchain
 
         Returns:
             True if the path is in settings, False if not