uncommit: don't allow dirty working copy with PATH (issue5977)
On a dirty PATH, uncommit was working without even setting the config
`experimental.uncommitondirtydir` to `True`. Ideally, it should abort
as it does for a dirty dir. This patch makes uncommit to require the
config option `experimental.uncommitondirtydir` on a dirty PATH.
Original patch to evolve extension authored by Dan Villiom Podlaski Christiansen:
https://bitbucket.org/octobus/evolve-devel/pull-requests/8/bug-5977-uncommit-dirtiness/diff
Differential Revision: https://phab.mercurial-scm.org/D5940
cleanup: remove two bogus test names from python3 list
I suspect one of these was a typo from the start, the other appears to
have become a .t test at some point.
Differential Revision: https://phab.mercurial-scm.org/D6076