Named procedure parameter error message too terse.

The error message for a named procedure "EXEC VirtProcs.dyno( virtprocs.dyno.timein='04:00:00', virtprocs.dyno.byteme=125)" error is

Invalid param name(s): [VIRTPROCS.DYNO.BYTEME, VIRTPROCS.DYNO.TIMEIN]

which doesn't give any indication as to what names are expected, it just returns the names used in upper case.