portable replacement for popen4
systemu is a portable replacement for popen4 in ruby.

systemu can be used on any platform to return status, stdout, and stderr
of any command. Unlike other methods like open3/popen4 there is zero
danger of full pipes or threading issues hanging your process or
subprocess.

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: http://rubyforge.org/projects/codeforpeople/
