'less' folder .editorconfig code guide updates

less/close.less

@@ -30,4 +30,4 @@ button.close {
   background: transparent;
   border: 0;
   -webkit-appearance: none;
-}
+}

less/responsive-utilities.less

@@ -74,4 +74,4 @@
 @media print {
   .visible-print  { display: inherit !important; }
   .hidden-print   { display: none !important; }
-}
+}