Don't panic if log parameters are invalid

log/log.go

@@ -168,10 +168,14 @@ func addFields(logger *logrus.Entry, keyValuePairs []interface{}) *logrus.Entry
 		case error:
 			logger = logger.WithField("error", name.Error())
 		case string:
+			if i+1 >= len(keyValuePairs) {
+				logger = logger.WithField(name, "!!!!Invalid number of arguments in log call!!!!")
+			} else {
 				value := keyValuePairs[i+1]
 				logger = logger.WithField(name, value)
 			}
 		}
+	}
 	return logger
 }