Fix a python 2.6+ syntax
Fix a python 2.6+ syntax

Tony is still not done upgrading python on the Mac OSX 10.5 slaves.

TBR=cmp@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/9134010

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@117633 0039d316-1c4b-4281-b951-d872f2087c98

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