[PATCH] status tests: fix a minor indenting issue

Change the indentation from "\t " to "\t". This indenting issue was
introduced when the test was added in commit
1d2f393ac9 ("status/commit: show staged submodules regardless of
ignore config", 2014-04-05).

Helped-by: Ævar Arnfjörð Bjarmason [off-list ref]
Signed-off-by: Kaartic Sivaraam <redacted>
Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 t/t7508-status.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/t7508-status.sh b/t/t7508-status.sh
index 5edcc6edf..35ea0b707 100755
--- a/t/t7508-status.sh
+++ b/t/t7508-status.sh

@@ -1494,7 +1494,7 @@ EOF

 test_expect_success 'git commit -m will commit a staged but ignored
submodule' '
 	git commit -uno -m message &&
 	git status -s --ignore-submodules=dirty >output &&
-	 test_i18ngrep ! "^M. sm" output &&
+	test_i18ngrep ! "^M. sm" output &&
 	git config --remove-section submodule.subname &&
 	git config -f .gitmodules  --remove-section submodule.subname
 '
-- 
2.11.0