formatted code

lib/single-file/serializer.js

@@ -20,7 +20,6 @@
 
 /* global Node */
 
-
 this.serializer = this.serializer || (() => {
 
 	const SELF_CLOSED_TAG_NAMES = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param", "source", "track", "wbr"];