trivial diff: fix a typo in the option table

[David Matthew Overton]

Hi,

I've just committed the following bug fix.

-David

Estimated hours taken: 0.1

compiler/options.m
	Fixed a miss-spelled option in the long_option table.

Index: options.m
===================================================================
RCS file: /home/staff/zs/imp/mercury/compiler/options.m,v
retrieving revision 1.240
diff -u -r1.240 options.m
--- 1.240	1998/09/10 06:51:30
+++ options.m	1998/09/16 02:00:01
@@ -880,7 +880,7 @@
 long_option("binary-switch-size",	binary_switch_size).
 long_option("static-ground-terms",	static_ground_terms).
 long_option("middle-rec",		middle_rec).
-long_option("simple_neg",		simple_neg).
+long_option("simple-neg",		simple_neg).
 long_option("follow-vars",		follow_vars).
 long_option("allow-hijacks",		allow_hijacks).
 
-- 
David Overton
MEngSc Student                       Email: dmo at cs.mu.oz.au     
Department of Computer Science       Web: http://www.cs.mu.oz.au/~dmo
The University of Melbourne          Phone: +61 3 9344 9159