parse-options: catch likely typo in presense of aggregated options.

diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index 6bfb899ed10606886ea3ce444f636b687bbfb66d..68b2b92879c5e187a33d34d3daf54bb3c131e40f 100755 (executable)
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -107,6 +107,10 @@ do
                diff expected actual
        '
 
+        test_expect_failure "grep -c $L (no /dev/null)" '
+               git grep -c test $H | grep -q "/dev/null"
+        '
+
 done
 
 test_done