legacy/trac#6274 introduced this code in `src/or/config.c`: ``` if (options->ServerTransportPlugin && !server_mode(options)) { log_notice(LD_GENERAL, "Tor is not configured as a relay but you specified" " a ServerTransportPlugin line (%s). The ServerTransportPlugin " "line will be ignored.", esc_for_log(options->ServerTransportPlugin->value)); } ``` This is wrong use of `esc_for_log()` and results in a memleak.