Previously, the head of the opened patch would not be displayed, and
so the user could not tell what it was if any updates were applied.
Show the head for the opened revision. The below shows the difference
between before and after, respectively:
```
├─────────────────────────────────────────────────────────────────────┤
│ ● opened by z6MknSL…StBU8Vi (you) now │
│ ↑ updated to 8d6692ce2b2219a54d09ccd5feefedb2bae33eba (02bef3f) now │
│ ↑ updated to 8438ab3940316abe65c93982a0a8f39688400359 (9304dbc) now │
╰─────────────────────────────────────────────────────────────────────╯
```
```
├─────────────────────────────────────────────────────────────────────┤
│ ● opened by z6MknSL…StBU8Vi (you) (8b0ea80) now │
│ ↑ updated to 8d6692ce2b2219a54d09ccd5feefedb2bae33eba (02bef3f) now │
│ ↑ updated to 8438ab3940316abe65c93982a0a8f39688400359 (9304dbc) now │
╰─────────────────────────────────────────────────────────────────────╯
```
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
Add the `--revision` option for `rad patch checkout`. This allows the
user to specify a particular revision of the patch to checkout. If the
revision is not specified it will use the latest revision of the patch.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
Fintan Halpenny