Finish off the libc5 porting effort. Everything now works with libc5

except for md5sum, which uses the GNU libc addition getline().
 -Erik

util-linux/mkfs_minix.c

@@ -797,6 +797,6 @@ goodbye:
 	}
 	mark_good_blocks();
 	write_tables();
-	exit( 0);
+	return( 0);
 
 }