cln_plugin: consider not unwrapping sends to logging channel #6039
Description
I'm trying to get Fedimint's plugin to shutdown cleanly when lightningd is killed.
In order to debug this, I tried adding an additional logging subscriber which logs to a file. This could be helpful for debugging when core-lightning's JSON-RPC logging fails (e.g. after lightningd has been killed). But this unwrap causes a panic which prevents this strategy from working.
In this instance, it would be nice if cln_plugin didn't panic here. But I can see how the panic could be helpful in other circumstances -- e.g. when logging isn't configured properly and the program should just crash. And at this point there isn't a way for just log an error instead of panicking because the logging mechanism itself has failed ...