Update lib/loader/umd/index.js

Co-authored-by: Max Graey <maxgraey@gmail.com>

Author: dcodeIO

lib/loader/umd/index.js

@@ -62,8 +62,7 @@ var loader = (function(exports) {
         fatal: true
       });
     } catch {
-      let str = "";
-      let off = 0;
+      let str = "", off = 0;
 
       while (len > STRING_CHUNKSIZE) {
         str += String.fromCharCode.apply(String, wtf16.subarray(off, off += STRING_CHUNKSIZE));