run-tests: use a small timeout for chg instance
There is case where the test runner fails to clean up the temporary files in
that case, spawned chg instance can stay around for 1 hours. Getting them to
shut down sooner cannot hurt.
(We should also use a more robust approach for this cleanup)
Differential Revision: https://phab.mercurial-scm.org/D11227
#require emacs
$ emacs -q -no-site-file -batch -l $TESTDIR/../contrib/hg-test-mode.el \
> -f ert-run-tests-batch-and-exit
Running 1 tests (*) (glob)
passed 1/1 hg-test-mode--compilation-mode-support* (glob)
Ran 1 tests, 1 results as expected* (glob)