[sr-dev] Re: [kamailio/kamailio] Nonexisted route in KEMI python causes "ksr_request_route not found or is not callable" (Issue #3572)

I build kamailio from master ``` $ /usr/local/sbin/kamailio -v version: kamailio 5.8.0-dev1 (x86_64/linux) 27f87c ```

and reproduce problem: ``` modparam("dispatcher", "event_callback", "ksr_evnt_dispatcher") # route actually named ksr_event_dispatcher KSR.tm.t_on_reply('ksr_onreply_MANAGE') # route not existed. KSR.tm.t_on_failure('ksr_failure_ROUTE') # route actually named ksr_failure_MANAGE ```

Patch work great - i get messages like ``` 0bdb87a767b52b60-1028569@10.100.32.228 OPTIONS app_python3 [python_exec.c:100]: apy_exec(): ksr_evnt_dispatcher not found or is not callable ((nil)) DEBUG: 766520133 INVITE app_python3 [python_exec.c:100]: apy_exec(): ksr_onreply_MANAGE not found or is not callable ((nil)) DEBUG: 2039759053 INVITE app_python3 [python_exec.c:100]: apy_exec(): ksr_failure_ROUTE not found or is not callable ((nil)) ```

and all forks still availible. But can those messages be at log level 'ERROR'? Without log level 'DEBUG' it's still hard to detect non-existed KEMI route