tests: deal with "ls" vs "ls -A" difference on 2BSD derived systems
BSD-derived systems will use "ls -A" when running as root. Adjust the
test cases to always use the flag and include .hg and related output as
appropiately.
Differential Revision: https://phab.mercurial-scm.org/D8397
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IncludeCategories:
- Regex: '^<'
Priority: 1
- Regex: '^"'
Priority: 2