tests: support passing testcase after .t paths that have path separators
This probably could have been implemented by changing the regex above this bit
of code, but I wasn't sure if it would end up handling various OSes correctly,
so I decided to go with this version instead.
Previously:
$ tests/run-tests.py tests/test-ssh.t -l
running 2 tests using 2 parallel processes
..
# Ran 2 tests, 0 skipped, 0 failed.
$ tests/run-tests.py tests/test-ssh.t#sshv1 -l
running 0 tests using 0 parallel processes
# Ran 0 tests, 0 skipped, 0 failed.
Now:
$ tests/run-tests.py tests/test-ssh.t -l
running 2 tests using 2 parallel processes
..
# Ran 2 tests, 0 skipped, 0 failed.
$ tests/run-tests.py tests/test-ssh.t#sshv1 -l
running 1 tests using 1 parallel processes
.
# Ran 1 tests, 0 skipped, 0 failed.
Differential Revision: https://phab.mercurial-scm.org/D5535
Hello, Foobar
[b'Hello, Fo, =;:<o', b'Hello, Bar']