+Aggressively empty the sendqpool (Read Help!)
+HAS_FERGUSON_FLUSHER
+ Instead of dropping clients with 'Buffer Allocation Error', try to send
+ data to clients to try and drop the sendq buffer size as a last resort
+ before dropping clients. This doesn't get rid of the problem, it just
+ tries hard to limit it's impact.
+ WARNING: *THIS PANICS UNCONFIGURED FREEBSD MACHINES*, make sure you've
+ read doc/freebsd.txt before enabling this feature on a FreeBSD machine.
+