Do not tell people to ask me for help. I won't help them.

Write a small HowTo to help confused people by confusing checks.

R=iannucci@chromium.org
BUG=

Review URL: https://codereview.chromium.org/137653003

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@244717 0039d316-1c4b-4281-b951-d872f2087c98

presubmit_support.py

@@ -1301,8 +1301,10 @@ def DoPresubmitChecks(change,
     global _ASKED_FOR_FEEDBACK
     # Ask for feedback one time out of 5.
     if (len(results) and random.randint(0, 4) == 0 and not _ASKED_FOR_FEEDBACK):
-      output.write("Was the presubmit check useful? Please send feedback "
-                  "& hate mail to maruel@chromium.org!\n")
+      output.write(
+          'Was the presubmit check useful? If not, run "git cl presubmit -v"\n'
+          'to figure out which PRESUBMIT.py was run, then run git blame\n'
+          'on the file to figure out who to ask for help.\n')
       _ASKED_FOR_FEEDBACK = True
     return output
   finally:

tests/presubmit_unittest.py

@@ -815,13 +815,15 @@ def CheckChangeOnCommit(input_api, output_api):
     output = presubmit.DoPresubmitChecks(
         change, False, True, None, input_buf, DEFAULT_SCRIPT, False, None)
     self.failIf(output.should_continue())
-    text = ('Running presubmit upload checks ...\n'
-            'Warning, no PRESUBMIT.py found.\n'
-            'Running default presubmit script.\n'
-            '\n'
-            '** Presubmit ERRORS **\n!!\n\n'
-            'Was the presubmit check useful? Please send feedback & hate mail '
-            'to maruel@chromium.org!\n')
+    text = (
+        'Running presubmit upload checks ...\n'
+        'Warning, no PRESUBMIT.py found.\n'
+        'Running default presubmit script.\n'
+        '\n'
+        '** Presubmit ERRORS **\n!!\n\n'
+        'Was the presubmit check useful? If not, run "git cl presubmit -v"\n'
+        'to figure out which PRESUBMIT.py was run, then run git blame\n'
+        'on the file to figure out who to ask for help.\n')
     self.assertEquals(output.getvalue(), text)
 
   def testDirectoryHandling(self):