unfinishedstate: suggested `hg update .` (including `.`) to complete update
`hg update` can update to a different and undesired commit. For users
who have commands.update.requiredest=yes, it's even an error to run
just `hg update.
Differential Revision: https://phab.mercurial-scm.org/D6956
To run the tests, do:
cd tests/
python run-tests.py
See https://mercurial-scm.org/wiki/WritingTests for
more information on writing tests.