Fixed image_to_live so that it will work with the new sudo
Fixed image_to_live so that it will work with the new sudo

This change will not work properly unless the chroot sudo is
updated to handle escaping properly:
  http://codereview.chromium.org/5923001

...and the chroot sudo will break image_to_live unless this
change goes in.  Thus, the two changes are intertwined.

Change-Id: Ib1602ee47178fc5d32c286e9a914111c1140252b

BUG=chromium-os:7072
TEST=Valided that the dev server seemed to be getting proper args.

Review URL: http://codereview.chromium.org/5929001

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