jooby/src/main/java/org/jooby/Err.java
private static String message(final Status status, @Nullable final String tail) {
    return message(status.reason(), status.value(), tail);
  }
private static String message(final Status status, @Nullable final String tail) {
    return message(status.reason(), status.value(), tail);
  }
Build an error message using the HTTP status.

@param status The HTTP Status.
@param tail A message to append.
@return An error message.