Every exec message was of the prototype int func (int fd, void *msg).
The "int fd" was not used by an executive message and was dead code from
a previous implementation. This dead parameter removed from the tree.

BKrev: 40eb05fa_UbGyISyMyNciMoGXAXDeg


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@58 fd59a12c-fef9-0310-b244-a6a79926bd2f