Re: [PATCH v2] new --dirty option for git describe

Jean Privat [off-list ref] writes:

+test_expect_success 'describe --dirty HEAD' '
+	git describe --dirty HEAD
+	test $? != 0
+'

We tend to write this as

	test_expect_success '...' '
        	test_must_fail git describe --dirty HEAD
	'

The difference is when the tested command segfaults or dies in an
uncontrolled fashion; test_must_fail diagnoses it as a failure,
while "test $? != 0" at the end will say "ok, the command correctly
failed".