XAC: XAC process terminated if XOS denies access to INITIAL-DIRECTORY

XAC: XAC process terminated if XOS denies access to INITIAL-DIRECTORY

Add (or correct) an OSSGROUP to access INITIAL-DIRECTORY in Safeguard.
OSSGROUP example:
OSSGROUP oss-exgrp-exusr
   MASK  RE:"^/users/exgrp/exusr.*"
   ACL \*.EXGRP.EXUSR (*)
         $EVERYONE  (OSS-CHDIR,OSS-OPENDIR,OSS-OPENR)
   PROCESS_AS_ACL