[PATCH maint 1/2] t4018-diff-funcname: rework negated last expression test

This test used the non-zero exit status of 'git diff' to indicate that a
negated funcname pattern, when placed last, was correctly rejected.

The problem with this is that 'git diff' always returns non-zero if it
finds differences in the files it is comparing, and the files must
contain differences in order to trigger the funcname pattern codepath.

Instead of checking for non-zero exit status, make sure the expected
error message is printed.

Signed-off-by: Brandon Casey <redacted>
---


This is not really a series, but I expect you'll apply both, so this
seems easier for both of us.

-brandon


 t/t4018-diff-funcname.sh |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/t/t4018-diff-funcname.sh b/t/t4018-diff-funcname.sh
index 99fff97..72076ec 100755
--- a/t/t4018-diff-funcname.sh
+++ b/t/t4018-diff-funcname.sh

@@ -65,7 +65,8 @@ test_expect_success 'custom pattern' '
 
 test_expect_success 'last regexp must not be negated' '
 	git config diff.java.funcname "!static" &&
-	test_must_fail git diff --no-index Beer.java Beer-correct.java
+	git diff --no-index Beer.java Beer-correct.java 2>&1 |
+	grep "fatal: Last expression must not be negated:"
 '
 
 test_expect_success 'alternation in pattern' '

-- 
1.6.0.2.101.gb844