[cvs-nhc98] Display AtomAbstract values e.g. IO as {IO} instead of _IO

Malcolm Wallace malcolm@sparud.net
Fri, 14 Jun 2002 12:33:54 +0200 (CEST) 

malcolm: Fri Jun 14 12:33:54 CEST 2002

Update of /usr/src/master/nhc/src/hat/tools
In directory hinken:/tmp/cvs-serv17383

Modified Files:
	SExp.hs artutils.c 
Log Message:
Display AtomAbstract values e.g. IO as {IO} instead of _IO_.
Also, fix a display problem with cyclic lists where the terminating ]
was missing.