b0t spams if no nickserv

[oumike]

b0t spams 'No such nick: NickServ' despite leaving password blank or removing from config.
if(config.nickserv_password) bot.say(config.nickserv_nick, 'identify ' + config.nickserv_password);
Even though I remove nickserv_password from config, it's re-added by default config. Need condition here to not run identify if nickserv_password doesn't exist or it's an empty string (or need to remove it from default config).