libgis: another attempt to clarify warning about renamed options

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@63367 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/parser.c

@@ -994,7 +994,7 @@ void set_option(const char *string)
         if (renamed_key) {
             for (at_opt = &st->first_option; at_opt; at_opt = at_opt->next_opt) {
                 if (strcmp(renamed_key, at_opt->key) == 0) {
-                    G_warning(_("Please update the user interface of <%s>: "
+                    G_warning(_("Please update the usage of <%s>: "
                                 "option <%s> has been renamed to <%s>"),
                               G_program_name(), the_key, renamed_key);
                     opt = at_opt;