- sl_find does not modify 'name'

- make the prototype of sl_find match NetBSD

Reviewed by:	jilles
Approved by:	cperciva (mentor)
MFC After:	3 days

include/stringlist.h

@@ -51,7 +51,7 @@ __BEGIN_DECLS
 StringList *sl_init(void);
 int	 sl_add(StringList *, char *);
 void	 sl_free(StringList *, int);
-char	*sl_find(StringList *, char *);
+char	*sl_find(StringList *, const char *);
 __END_DECLS
 
 #endif /* _STRINGLIST_H */

lib/libc/gen/stringlist.3

@@ -49,7 +49,7 @@
 .Ft void
 .Fn sl_free "StringList *sl" "int freeall"
 .Ft char *
-.Fn sl_find "StringList *sl" "char *item"
+.Fn sl_find "StringList *sl" "const char *item"
 .Sh DESCRIPTION
 The
 .Nm

lib/libc/gen/stringlist.c

@@ -104,7 +104,7 @@ sl_free(StringList *sl, int all)
  * sl_find(): Find a name in the string list
  */
 char *
-sl_find(StringList *sl, char *name)
+sl_find(StringList *sl, const char *name)
 {
 	size_t i;