Don't let "Package framework" run a random POSTBUILDS command.
Don't let "Package framework" run a random POSTBUILDS command.

'0' counts as true in makefiles apparently.
BUG=chromium:94827
Review URL: http://codereview.chromium.org/7826004
witwall/gyp,witwall/gyp,witwall/gyp,witwall/gyp,witwall/gyp