Fix lint errors

Single quotes instead of double quotes

diff --git a/src/util.js b/src/util.js
index 9537320578e3bc6b8c9f6ce31b17550e26a1b303..9765914ca2f88755d65ea3f7e591b673948c50d2 100644 (file)
--- a/src/util.js
+++ b/src/util.js
@@ -19,12 +19,12 @@ function backtrace() {
   try {
     throw new Error();
   } catch (e) {
-    return e.stack ? e.stack.split('\n').slice(2).join('\n') : "";
+    return e.stack ? e.stack.split('\n').slice(2).join('\n') : '';
   }
 }
 
 function error(msg) {
-  log("Error: " + msg);
+  log('Error: ' + msg);
   log(backtrace());
   throw new Error(msg);
 }