t3400: use test_config to set/unset git config variables

Instead of using construct such as:
test_when_finished "git config --unset <key>"
git config <key> <value>
uses
test_config <key> <value>
The latter takes care of removing <key> at the end of the test.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh
index 1de0ebda25c1034fc1b343a8f0e3da9c2c7f8c6e..f6cc10265700730999174347704a0df6989c7f1b 100755 (executable)
--- a/t/t3400-rebase.sh
+++ b/t/t3400-rebase.sh
@@ -138,8 +138,7 @@ test_expect_success 'rebase a single mode change' '
 '
 
 test_expect_success 'rebase is not broken by diff.renames' '
-       git config diff.renames copies &&
-       test_when_finished "git config --unset diff.renames" &&
+       test_config diff.renames copies &&
        git checkout filemove &&
        GIT_TRACE=1 git rebase force-3way
 '