Fix for error when writing html output.
Fix for error when writing html output.

 File "/home/chrome-bot/buildbot/build/scripts/tools/lkgr_finder.py", line 668, in revision_cb
    tmpl % urllib.quote(revision), revision)]
 File "/usr/lib/python2.7/urllib.py", line 1266, in quote
    if not s.rstrip(safe):
 AttributeError: 'int' object has no attribute 'rstrip'

TBR=phajdan.jr@chromium.org
BUG=339839

Review URL: https://codereview.chromium.org/141633007

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@248218 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build