add JSON.stringify

Author: KazuCocoa

lib/driver.js

@@ -221,7 +221,7 @@ export class WebOSDriver extends BaseDriver {
       return browserVersionInfo;
     }
 
-    log.info(`The response did not have Browser, thus set the Browser value from UA as ${browserVersionInfo}`);
+    log.info(`The response did not have Browser, thus set the Browser value from UA as ${JSON.stringify(browserVersionInfo)}`);
     browserVersionInfo.Browser = chromeVersion[0];
     return browserVersionInfo;
   }