Patch for [ 538137 ] apropos command doesn't work



The attached patch adds the apropos function from 
http://www.unk.edu/acad/math/people/willisb/.  I have put it 
in macdes.lisp, with the definition of DESCRIBE().  It seemed
as good a spot as any.

Tested on windows using gcl.  OK to commit.

(C4) apropos(EXP);
(D4) [EXPONENTIALIZE, M$EXP?, EXPOP, EXPINT, EXPAND, EXPLOSE, EXPON, 
EXPTISOLATE, EXPTSUBST, EXPTDISPFLAG, EXPANSION, EXPT, EXPR, EXP, 
EXPNLENGTH, EXPLICIT]

Index: src/macdes.lisp
===================================================================
RCS file: /cvsroot/maxima/maxima/src/macdes.lisp,v
retrieving revision 1.7
diff -u -r1.7 macdes.lisp
--- src/macdes.lisp     9 Dec 2001 14:17:55 -0000       1.7
+++ src/macdes.lisp     6 Apr 2002 14:03:16 -0000
@@ -133,5 +133,5 @@
   )


-
+(defun $apropos ( s ) (cons '(mlist) (apropos-list s "MAXIMA")))