Fix test-notify for systems without or with a different version of diffstat. Some diffstat versions say "1 file changed", others "1 files changed".

#!/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