It is not clear if this is a benefit or not.  There seems to be a significant
(100msec ?) inter-request gap and seeting the grace period that long
means tying up worker threads doing basically nothing.

Setting a short timeout (10msec) results in an extra system call which
practically never does anything good.

Unless benefit is shown, this stuff should be removed again.


git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@993 d4fa192b-c00b-0410-8231-f00ffab90ce4