From: utzoo!henry
Newsgroups: hacknews
Title: popen bug fixed 
Article-I.D.: utzoo.2749
Posted: Thu Jan 13 22:49:01 1983
Received: Thu Jan 13 22:49:01 1983

Fixed a bug in popen(3) reported on the net:  it failed to close file
descriptors if its fork() failed.  Under slightly unusual conditions,
this could cause serious trouble.