Wrap param with parens for consistency

spec/features/protected_branches_spec.rb

@@ -11,7 +11,7 @@ feature 'Projected Branches', feature: true, js: true do
   def set_protected_branch_name(branch_name)
     find(".js-protected-branch-select").click
     find(".dropdown-input-field").set(branch_name)
-    click_on "Create wildcard #{branch_name}"
+    click_on("Create wildcard #{branch_name}")
   end
 
   describe "explicit protected branches" do