t3005: remove unused variable

diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 909c743c134c5e18e0a80db3eae2dfb6e8210e6a..b6e2fdbc4410f1b8b04586f12bb8806e85a10e8d 100755 (executable)
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -589,6 +589,12 @@ test_expect_success 'excessive subject' '
        ls patches/0004-This-is-an-excessively-long-subject-line-for-a-messa.patch
 '
 
+test_expect_success 'failure to write cover-letter aborts gracefully' '
+       test_when_finished "rmdir 0000-cover-letter.patch" &&
+       mkdir 0000-cover-letter.patch &&
+       test_must_fail git format-patch --no-renames --cover-letter -1
+'
+
 test_expect_success 'cover-letter inherits diff options' '
        git mv file foo &&
        git commit -m foo &&