Allow tests that end in .py and .bat Revision 6ed46bad9530 disallowed tests that have a '.' in the name, but that also disallows tests that end in .py and .bat, even though run-tests.py has some code to special case them.

#!/bin/sh

hg init

echo "Is there an error message when trying to diff non-existing files?"
hg diff not found

echo "Is there an error message when trying to add non-existing files?"
hg add not found