6b6256a939
- `b' is now an official alias for `break'. It used to be an unofficial alias, but this was broken by adding the `bt' alias for `trace'. - `t' is now an official alias for `trace'. It used to be an unofficial alias, but this was broken by adding the `thread' command. - `registers' is now an alias for `show registers'. This is a hack to break the unofficial `r' alias for `reset'. `r' really means `registers' in some debuggers, so I sometimes type it accidentally and am annoyed when it resets the system. A short command shouldn't have such a large effect. Now at least `res' must be typed to disambiguate `reset'.