Add a dummy param to project-relative-path test

Author: ajchemist

test/clojure-mode-util-test.el

@@ -33,7 +33,7 @@
 
   (ert-deftest project-relative-path ()
     :tags '(utils)
-    (cl-letf (((symbol-function 'clojure-project-dir) (lambda () project-dir)))
+    (cl-letf (((symbol-function 'clojure-project-dir) (lambda (_) project-dir)))
       (should (string= (clojure-project-relative-path clj-file-path)
                        project-relative-clj-file-path))))