[plan-build] Fix MANIFEST Interpreters entry punctuation.
[plan-build] Fix MANIFEST Interpreters entry punctuation.

Pull request: #449
Approved by: adamhjk

georgemarshall/habitat,habitat-sh/habitat,georgemarshall/habitat,georgemarshall/habitat,habitat-sh/habitat,habitat-sh/habitat,habitat-sh/habitat,rsertelon/habitat,habitat-sh/habitat,habitat-sh/habitat,habitat-sh/habitat,rsertelon/habitat,nathenharvey/habitat,georgemarshall/habitat,rsertelon/habitat,georgemarshall/habitat,georgemarshall/habitat,georgemarshall/habitat,rsertelon/habitat,habitat-sh/habitat,georgemarshall/habitat,rsertelon/habitat,nathenharvey/habitat,rsertelon/habitat,nathenharvey/habitat,nathenharvey/habitat,nathenharvey/habitat,nathenharvey/habitat,rsertelon/habitat