This bug has been copied from bug #545682 and has been proposed to be backported to 4.8 z-stream (EUS).
the added option (-G) is not documented in man pages. This is common bug for many latest fence agents updates. Bug 573990 is new bug for tracking these missing updates, so I have put it there.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2010-0335.html