GnoConsortium/gno — pull request #6 by ksherlock (2012-09-09 17:44:26+00:00)
Title: sysexits.h header

From FreeBSD 9.0. Used in newer utilities for the return value.

http://svnweb.freebsd.org/base/stable/9/include/sysexits.h?revision=225736&view=markup