clone: detect and fail on excess parameters

"git clone [options] $src $dst excess-garbage" simply ignored
excess-garbage without giving any diagnostic message.  Fix it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
new file mode 100755
index 000000000..dc9d63dbf
--- /dev/null
+++ b/t/t5601-clone.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+test_description=clone
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+	rm -fr .git &&
+	test_create_repo src &&
+	(
+		cd src
+		>file
+		git add file
+		git commit -m initial
+	)
+
+'
+
+test_expect_success 'clone with excess parameters' '
+
+	test_must_fail git clone -n "file://$(pwd)/src" dst junk
+
+'
+
+test_done