Comment 16 for bug 1582515

Btw, if your suggestion is to replace "snapcraft prime" and prime/ by "snapcraft snap" and snap/, that sounds good, but then we get back into the problem of missing a verb for actually creating the "snap" file, and get back into the confusion of having "snap" meaning both the snap/ directory and the .snap file. This is precisely the background for this ticket, and why we're going into the prime+prime/ direction.