Minecrell authored Mar 14, 2020 and Bart Ribbers committed Mar 18, 2020

pmbootstrap now allows APKBUILDs in arbitrarily nested directories
within pmaports. This means that we really need some checks to ensure
APKBUILDs don't end up all over the place.

Add a test case with a whitelist of allowed directories.
Having this list in pmaports allows changing it without a new pmbootstrap
release.