[PATCH v2 5/9] t1300: disable system-wide config for tests that wants to read from -c

[Junio C Hamano <gitster@pobox.com>]

This test wants to do

	git -c x.two=2 config --get-regexp ^x\.*

and see x.two that came from the one-shot configuration in its
output.  This form cannot be limited with "--local", as it limits
the input to the local configuration file and makes these one-shot
settings ignored.  At this point, the test knows that there is no
variable that match x.* in its local configuration, and it also was
OK to assume that there is nothing in the system-wide config or
global one.

Make sure that assumption holds by using the GIT_CONFIG_NOSYSTEM
environment, as we may add anything to t/gitconfig-for-test later.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 t/t1300-repo-config.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index 940469339bd2..95734034e0d5 100755
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -1093,6 +1093,7 @@ test_expect_success 'multiple git -c appends config' '
 	x.one 1
 	x.two 2
 	EOF
+	GIT_CONFIG_NOSYSTEM=1 \
 	git -c x.one=1 x >actual &&
 	test_cmp expect actual
 '
-- 
2.10.0-589-g5adf4e1