SYNOPSIS
        mixed query_notify_fail()
        mixed query_notify_fail(int flag)

DESCRIPTION
        If <flag> is not given or 0: return the string or closure which
        was last set as error message for this command (with notify_fail()).

        If <flag> is given and 1: return the object which issued the last
        notify_fail().

        If nothing was set yet, return 0.

HISTORY
        Introduced in LDMud 3.2.7.
        LDMud 3.2.8 added the <flag> parameter.

SEE ALSO
        add_action(E), query_verb(E), query_command(E), notify_fail(E),
        hooks(C)