Clean up the oopsie. Rebuild the blank exercises.

node_modules/strip-bom/index.js

@@ -1,14 +1,15 @@
 'use strict';
-module.exports = x => {
-	if (typeof x !== 'string') {
-		throw new TypeError('Expected a string, got ' + typeof x);
+
+module.exports = string => {
+	if (typeof string !== 'string') {
+		throw new TypeError(`Expected a string, got ${typeof string}`);
 	}
 
 	// Catches EFBBBF (UTF-8 BOM) because the buffer-to-string
 	// conversion translates it to FEFF (UTF-16 BOM)
-	if (x.charCodeAt(0) === 0xFEFF) {
-		return x.slice(1);
+	if (string.charCodeAt(0) === 0xFEFF) {
+		return string.slice(1);
 	}
 
-	return x;
+	return string;
 };