from preamble:

"Change Set:		RevertExceptionDescription-ab
Date:			20 August 2003
Author:			Avi Bryant

One thing that (perhaps irrationally) drives me nuts about the
ContextEnh changes is that, for no apparent reason, MessageNotUnderstood
exceptions now yield 'SmallInteger quux?' as their description text
rather than 'MessageNotUnderstood: quux'.  This changeset simply reverts
two methods (Exception>>description and
MessageNotUnderstood>>messageText) back to their original versions."!
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