[c-nsp] how to filter some specific logging message

[Manu Chao]

Is it possible to filter some specific syslog message with logging filter
command or with logging discriminator?

There are some "cosmetic" bugs that I need to filter...

Example: i don't want the specific message message including "fem" to be
sent to my remote syslog server.

I try that configuration but no way :( may be a syntax problem may be not
possible to filter?

logging discriminator nolog msg-body drops *fem
logging host x.x.x.x discriminator nolog

Thanks for your help