(which are numeric, they'll follow shortly)

Unify the shmemlog tag used for failure to rewrite something, the Rx/Tx/Obj
distinction is not helpful enough to warrant the complexity of it.






git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1659 d4fa192b-c00b-0410-8231-f00ffab90ce4