diff: scripts/ml.in bug fix from <dunc at acm.org>

[Fergus Henderson]

scripts/ml.in:
	Fix a bug (missing backslash before "`" in an error message)
	reported by Kevet Duncombe <dunc at acm.org>. 
	Apparently this bug broke things on FreeBSD 2.2.5.

Index: ml.in
===================================================================
RCS file: /home/mercury1/repository/mercury/scripts/ml.in,v
retrieving revision 1.37
diff -u -u -r1.37 ml.in
--- ml.in	1998/02/16 06:50:21	1.37
+++ ml.in	1998/02/26 09:21:54
@@ -146,7 +146,7 @@
 				cat 1>&2 << EOF
 $progname: Error: parameter to \`--mercury-libs' option should be either
 $progname:   \`shared', \`static', \`none', or \`default', not \`$2'.
-$progname: Try `$0 --help' for help.
+$progname: Try \`$0 --help' for help.
 EOF
 				exit 1
 				;;
-- 
Fergus Henderson <fjh at cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
PGP: finger fjh at 128.250.37.3         |     -- the last words of T. S. Garp.