Reduce the number of "internal error, foo overflow" messages that

need to be translated.

plugins/sudoers/testsudoers.c

@@ -250,7 +250,7 @@ main(int argc, char *argv[])
 	for (to = user_args, from = argv; *from; from++) {
 	    n = strlcpy(to, *from, size - (to - user_args));
 	    if (n >= size - (to - user_args))
-		    errorx(1, _("internal error, init_vars() overflow"));
+		errorx(1, _("internal error, %s overflow"), "init_vars()");
 	    to += n;
 	    *to++ = ' ';
 	}