envsetup: fix mm under zsh

Fix a word splitting issue in zsh. Instead of building a duplicate
ARGS array for the !GET-INSTALL-PATH case, leave it untouched. For the
GET-INSTALL-PATH case, modify the argument list as needed.

Change-Id: I902ff1bc7a53e7afa8c4737d4208592ac18f95d7
1 file changed