tree 356fbe1bc3c8a1516487bf5d9d8faab9556c620d
parent 2b85f70db0d42f72fc532de906494fa173efa834
author rsc <devnull@localhost> 1105477615 +0000
committer rsc <devnull@localhost> 1105477615 +0000
golang-hg 918e1855011119d55829887e9e1cfc9e5ae564c9

don't rfork(RFNOTEG) because then you lose
the ability to read from the console.  damn.

also, handle case where child exits before
fork returns in parent.  have to record that
sigchld was seen and then run the handler later.