Make presubmit output less annoying for mac people.

Review URL: http://codereview.chromium.org/3521006

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@61277 0039d316-1c4b-4281-b951-d872f2087c98

presubmit_canned_checks.py

@@ -258,6 +258,7 @@ def CheckLongLines(input_api, output_api, maxlen=80, source_file_filter=None):
         not 'https://' in line and
         not line.startswith('#define') and
         not line.startswith('#include') and
+        not line.startswith('#import') and
         not line.startswith('#pragma') and
         not line.startswith('#if') and
         not line.startswith('#endif')):