- conf.c:conf_free(): fixed possible infinite loop with /stats c as reported by Adam.
  We now assume that all MaskItem are linked onto some list


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/branches/8.1.x@4512 82007160-df01-0410-b94d-b575c5fd34c7