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* Fix bad function definitions in Debian plugin

There appears to be a definition issue for some functions/aliases which
result in the following errors when sourcing .zshrc:

```
/home/username/.oh-my-zsh/plugins/debian/debian.plugin.zsh:75: defining function based on alias `abd'
/home/username/.oh-my-zsh/plugins/debian/debian.plugin.zsh:75: parse error near `()'
```

Fixes #7986

* Update syntax on the remaining functions

We do this because the GitHub Actions behavior was changed recently
so as to not pass secrets to action runs started from forks, therefore
the API token passed cannot be used to change PR labels.

There may be an alternative in the future.

There appears to be a definition issue for some functions/aliases which
result in the following errors when sourcing .zshrc:

```
/home/username/.oh-my-zsh/plugins/debian/debian.plugin.zsh:75: defining function based on alias `abd'
/home/username/.oh-my-zsh/plugins/debian/debian.plugin.zsh:75: parse error near `()'
```

Fixes #7986

The `commands[autojump]` block errs out when autojump is not found, and the rest, which is intended to be used for loading `autojump`, does not get executed.

Git learned to add a `+` in front of branches that are
checked out in other worktrees.

See: https://github.com/git/git/blob/745f6812895b31c02b29bdfe4ae8e5498f776c26/Documentation/RelNotes/2.23.0.txt#L252-L256

Git learned to add a `+` in front of branches that are
checked out in other worktrees.

See: https://github.com/git/git/blob/745f6812895b31c02b29bdfe4ae8e5498f776c26/Documentation/RelNotes/2.23.0.txt#L252-L256

- Add mercurial support to af-magic, so now the vcs prompt will show up in either a git or hg repository
- The virtualenv prompt was white and bumped up against the user@hostname output
- Fixed that so its green (which I thought highlighted it more thematically) and has a space before user@hostname

Fixes #7942

Provisional measure due to "Unexpected value 'if'" error. See https://github.community/t5/GitHub-API-Development-and/jobs-lt-job-id-gt-if-not-working/m-p/28980

This allows you to use `colored git log --help` for example, to get
colored output.

This reverts commit 59c1ec80.

Fixes #7985

Removing plugin that was named after an external tool, which carries a history as a racist phrase. Was reported by a user of OMZ who shared some background on the terminology and how it made them feel. (#8027)

The original suggestion for an unattended install downloads the installation script to a file, then runs that file with the --unattended argument. The install.sh file would be left behind after the suggested command was run.
This change passes the --unattended argument directly into sh. So, it's a nice one-liner like the default installation script, and it doesn't leave a dangling install.sh script.

After wandering into a few articles that discuss the difference between might and may...opting for may.

Redirect stderr to avoid printing errors to the console when the ssh key is not
unlocked.