Message sets

If a builder finds an error, it adds a message to a message set. This set is then printed by the caller; for example:
DFHTCRP   Cold start (local system entry
                      and error console only)
DFHAMTP   CEDA, EXEC CICS CREATE
DFHEIQSC  EXEC CICS DISCARD CONNECTION
DFHEIQST  EXEC CICS DISCARD TERMINAL
DFHZATA   Autoinstall
DFHZATD   Autoinstall delete
DFHZATS   Install and delete transaction routed terminals