Handle the case when there is unicode in the tree status more gracefully.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/3184024

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@57447 0039d316-1c4b-4281-b951-d872f2087c98

presubmit_support.py

@@ -115,7 +115,7 @@ class OutputApi(object):
         output_stream.write('  ' + ' \\\n  '.join(map(str, self._items)) + '\n')
       if self._long_text:
         output_stream.write('\n***************\n%s\n***************\n' %
-                            self._long_text)
+                            self._long_text.encode('ascii', 'replace'))
 
       if self.ShouldPrompt() and may_prompt:
         if not PromptYesNo(input_stream, output_stream,