Update.

Update.

	* nscd/connections.c (client_queued): New variable.
	(nscd_run): Revamp the loop.  Don't call poll except for cleanup
	threads.  Keep track of the number of delays caused because of busy
	worker threads.
	* nscd/nscd.h: Declare client_queued.
	* nscd/nscd_stat.c: Transmit and print client_queued information.