trivial diff: util/info_to_mdb.c bug fix

[Fergus Henderson]

Estimated hours taken: 0.1

util/info_to_mdb.c:
	Fix a bug: cast the argument to toupper() to `unsigned char'.

Index: util/info_to_mdb.c
===================================================================
RCS file: /home/staff/zs/imp/mercury/util/info_to_mdb.c,v
retrieving revision 1.1
diff -u -r1.1 info_to_mdb.c
--- info_to_mdb.c	1998/10/16 06:20:27	1.1
+++ info_to_mdb.c	1999/02/10 18:34:22
@@ -31,7 +31,7 @@
 static	char	*get_next_line(FILE *infp);
 static	void	put_line_back(char *line);
 
-#define	concept_char(c)		(MR_isupper(c) ? tolower(c) : \
+#define	concept_char(c)		(MR_isupper(c) ? tolower((unsigned char)c) : \
 					(MR_isspace(c) ? '_' : (c)))
 
 int

-- 
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WWW: <http://www.cs.mu.oz.au/~fjh>  |   but source code lives forever"
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