Preserve new lines from original src

src/elements/basic.icon.less

@@ -77,9 +77,11 @@ i.basic.icon.resize.vertical:before { content: '\2b0c'; } /* '⬌' */
 i.basic.icon.down:before { content: '\2193'; } /* '↓' */
 i.basic.icon.down.triangle:before { content: '\25be'; } /* '▾' */
 i.basic.icon.down.arrow:before { content: '\e75c'; } /* '' */
+
 i.basic.icon.left:before { content: '\2190'; } /* '←' */
 i.basic.icon.left.triangle:before { content: '\25c2'; } /* '◂' */
 i.basic.icon.left.arrow:before { content: '\e75d'; } /* '' */
+
 i.basic.icon.right:before { content: '\2192'; } /* '→' */
 i.basic.icon.right.triangle:before { content: '\25b8'; } /* '▸' */
 i.basic.icon.right.arrow:before { content: '\e75e'; } /* '' */

src/elements/icon.less

@@ -70,6 +70,7 @@ i.icon {
   -moz-font-smoothing: antialiased;
   font-smoothing: antialiased;
 }
+
 i.icon.left:before { content: "\f060"; }
 i.icon.right:before { content: "\f061"; }