indicate that they're for DFS; update comments as well.
Rename packet-dcerpc-afs4int.c to packet-dcerpc-fileexp.c, and change
the short and filter names for the protocol, and the names for the
filterable fields, to reflect the fact that it's for the File Exporter
protocol in DFS. ("AFS 4" = DCE DFS.)
svn path=/trunk/; revision=22827
Guy Harris