Comment 5 for bug 1590256

Tested in an up-to-date xenial:

- Update to snapcraft 2.10.1
- snapcraft init
- snapcraft
- snapcraft clean
- The priming area is mentioned, instead of the striping area.
- snapcraft prime
- The prime step is executed, no warning.
- snapcraft strip
- A deprecation warning is printed. The step is not reexecuted.
- snapcraft clean -s prime
- The prime step is clean up, no warning.
- snapcraft strip
- A deprecation warning is printed. The prime step is executed.
- snapcraft clean -s strip
- A deprecation warning is printed. The prime step is cleaned.

All good, I'm marking this as done.

Thanks Steve!