Clarify build target for packer build to make it clear it draws from GitHub not CWD
Clarify build target for packer build to make it clear it draws from GitHub not CWD

Phrozyn/MozDef,gdestuynder/MozDef,jeffbryner/MozDef,mozilla/MozDef,gdestuynder/MozDef,mpurzynski/MozDef,mpurzynski/MozDef,mozilla/MozDef,mozilla/MozDef,Phrozyn/MozDef,jeffbryner/MozDef,Phrozyn/MozDef,mpurzynski/MozDef,mpurzynski/MozDef,Phrozyn/MozDef,jeffbryner/MozDef,jeffbryner/MozDef,gdestuynder/MozDef,gdestuynder/MozDef,mozilla/MozDef