No "--" for "git cat-file"?

internal/git/blob.go

@@ -26,7 +26,7 @@ func SendBlob(w http.ResponseWriter, r *http.Request, sendData string) {
 	}
 	log.Printf("SendBlob: sending %q for %q", params.BlobId, r.URL.Path)
 
-	gitShowCmd := gitCommand("", "git", "--git-dir="+params.RepoPath, "cat-file", "blob", "--", params.BlobId)
+	gitShowCmd := gitCommand("", "git", "--git-dir="+params.RepoPath, "cat-file", "blob", params.BlobId)
 	stdout, err := gitShowCmd.StdoutPipe()
 	if err != nil {
 		helper.Fail500(w, fmt.Errorf("SendBlob: git  stdout: %v", err))