cros_workon: WORKON_FILE should be owned by the user
cros_workon: WORKON_FILE should be owned by the user

BUG=none
TEST=Verified that WORKON_FILE is now owned by the user.

Change-Id: I32f05d5de5177756945b6f5bc037a2f738ffffe5

Review URL: http://codereview.chromium.org/3446002

mischief/scripts,nicescale/scripts,mjg59/scripts,crawford/scripts,sigma/coreos-scripts,trnubo/scripts,andrejro/coreos--scripts,vmware/coreos-scripts,gtank/scripts,coreos/scripts,nicescale/scripts,zhang0137/scripts,vmware/coreos-scripts,trnubo/scripts,endocode/scripts,mischief/scripts,marineam/coreos-scripts,sigma/coreos-scripts,gtank/scripts,bcwaldon/coreos-scripts,zhang0137/scripts,mischief/scripts,glevand/coreos--scripts,endocode/scripts,mjg59/scripts,smilart/scripts,marineam/coreos-scripts,BugRoger/scripts,mjg59/scripts,smilart/scripts,vmware/coreos-scripts,trnubo/scripts,gtank/scripts,fivethreeo/scripts,smilart/scripts,sigma/coreos-scripts,andrejro/coreos--scripts,coreos/scripts,fivethreeo/scripts,fivethreeo/scripts,BugRoger/scripts,marineam/coreos-scripts,BugRoger/scripts,crawford/scripts,nicescale/scripts,crawford/scripts,andrejro/coreos--scripts,bcwaldon/coreos-scripts,endocode/scripts,bcwaldon/coreos-scripts,glevand/coreos--scripts,zhang0137/scripts