message: EVPath 2019-03-12 (e68d1fe2)
  Code extracted from:
  at commit (master).
  Upstream Shortlog
diff: @@ -553,11 +553,8 @@ get_IP_config(char *hostname_buf, int len, int* IP_p, int *port_range_low_p, int
  }
  }
  - get_string_attr(attrs, CM_IP_INTERFACE, &interface);
  - if (!interface) {
  - interface = getenv(IPCONFIG_ENVVAR_PREFIX "INTERFACE");
  - }
  - if (interface) {
  +
  + if (get_string_attr(attrs, CM_IP_INTERFACE, &interface)) {
  /* don't use predetermined stuff ! */
  get_qual_hostname(hostname_to_use, sizeof(hostname_to_use), attrs, NULL, trace_func, trace_data);
  IP_to_use = get_self_ip_iface(trace_func, trace_data, interface);
  