t5601: add missing && cascade

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: pclouds

t/t5601-clone.sh

@@ -9,9 +9,9 @@ test_expect_success setup '
 	rm -fr .git &&
 	test_create_repo src &&
 	(
-		cd src
-		>file
-		git add file
+		cd src &&
+		>file &&
+		git add file &&
 		git commit -m initial
 	)