- g = string_append(g, 2, US" I=[", sending_ip_address);
- g = LOGGING(outgoing_port)
- ? string_append(g, 2, US"]:", string_sprintf("%d", sending_port))
- : string_catn(g, US"]", 1);
+ g = string_fmt_append(g, " I=[%s]", sending_ip_address);
+ if (LOGGING(outgoing_port))
+ g = string_fmt_append(g, "%d", sending_port);