tests: new test for mq qdiff command `hg qdiff .' is supposed to work but it is currently broken. This test should help us verify when it gets fixed.

#!/bin/sh

hg
hg -q
hg help
hg -q help
hg add -h
hg add --skjdfks
hg help diff
hg help status
hg -q help status
hg help foo
hg skjdfks

exit 0