spacing and log the new log level string as well as number

src/zm_logger.cpp

@@ -47,7 +47,7 @@ void Logger::usrHandler(int sig) {
     logger->level(logger->level()+1);
   else if (sig == SIGUSR2)
     logger->level(logger->level()-1);
-  Info("Logger - Level changed to %d", logger->level());
+  Info("Logger - Level changed to %d %s", logger->level(), smCodes[logger->level()].c_str());
 }
 
 Logger::Logger() :