Remove redundant bit clears from diff_setup()

diff --git a/t/t5511-refspec.sh b/t/t5511-refspec.sh
index 670a8f1c9992f9c8d15144b2c19b242821e3814b..22ba380034775e7584a33ca606294af34f568443 100755 (executable)
--- a/t/t5511-refspec.sh
+++ b/t/t5511-refspec.sh
@@ -23,10 +23,13 @@ test_refspec () {
 }
 
 test_refspec push ''                                           invalid
-test_refspec push ':'                                          invalid
+test_refspec push ':'
+test_refspec push '::'                                         invalid
+test_refspec push '+:'
 
 test_refspec fetch ''
 test_refspec fetch ':'
+test_refspec fetch '::'                                                invalid
 
 test_refspec push 'refs/heads/*:refs/remotes/frotz/*'
 test_refspec push 'refs/heads/*:refs/remotes/frotz'            invalid