Properly switch between manifest_to_hash.py and manifest_to_hash.bat
Properly switch between manifest_to_hash.py and manifest_to_hash.bat

TBR=maruel@chromium.org
BUG=


Review URL: https://chromiumcodereview.appspot.com/11007002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@159330 0039d316-1c4b-4281-b951-d872f2087c98

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