Fix a coding error that was introduced in 26423.

"file_list = file_list or []" would create a new empty list when an empty list is passed as a parameter, ditching the output parameter.

TEST=hooks are now run on gclient sync
BUG=none

Review URL: http://codereview.chromium.org/208010


git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@26461 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed