[PATCH 06/12] t7502: use diff.noprefix for --verbose test

To check that "status -v" respects diff config, we set
"color.diff" and look at the output of "status". We could
equally well use any diff config. Since color output depends
on a lot of other factors (like whether stdout is a tty, and
how we interpret "always"), let's use a more mundane option.

Signed-off-by: Jeff King <redacted>
---
 t/t7502-commit.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/t7502-commit.sh b/t/t7502-commit.sh
index 725687d5d5..d33a3cb331 100755
--- a/t/t7502-commit.sh
+++ b/t/t7502-commit.sh

@@ -171,9 +171,9 @@ test_expect_success 'verbose' '
 
 test_expect_success 'verbose respects diff config' '
 
-	test_config color.diff always &&
+	test_config diff.noprefix true &&
 	git status -v >actual &&
-	grep "\[1mdiff --git" actual
+	grep "diff --git negative negative" actual
 '
 
 mesg_with_comment_and_newlines='

-- 
2.14.2.1079.gce6b466188