Default snapcraft.yaml file incorrectly suggests I run 'snapcraft plugins'

[Thomi Richards]

In snapcraft 2.21, I generate a new snapcraft.yaml file with 'snapcraft init'. That generates a file, the tail end of which looks like this:

```
parts:
  app:
    # See 'snapcraft plugins'
    plugin: nil
```

I'm not sure what "See 'snapcraft plugins'" is suggesting, but my first thought is that 'snapcraft plugins' is a command I can run to see a list of plugins. However:

```
$ snapcraft plugins
Usage:
  snapcraft [options] [--enable-geoip --no-parallel-build]
  snapcraft [options] init
  snapcraft [options] pull [<part> ...] [--enable-geoip]
  snapcraft [options] build [<part> ...] [--no-parallel-build]
  snapcraft [options] stage [<part> ...]
  snapcraft [options] prime [<part> ...]
  snapcraft [options] strip [<part> ...]
  snapcraft [options] clean [<part> ...] [--step <step>]
  snapcraft [options] snap [<directory> --output <snap-file>]
  snapcraft [options] cleanbuild
  snapcraft [options] login
  snapcraft [options] logout
  snapcraft [options] list-keys
  snapcraft [options] keys
  snapcraft [options] create-key [<key-name>]
  snapcraft [options] register-key [<key-name>]
  snapcraft [options] register <snap-name> [--private]
  snapcraft [options] sign-build <snap-file> [--key-name=<key-name>] [--local]
  snapcraft [options] upload <snap-file>
  snapcraft [options] push <snap-file> [--release <channels>]
  snapcraft [options] release <snap-name> <revision> <channel>
  snapcraft [options] status <snap-name> [--series=<series>] [--arch=<arch>]
  snapcraft [options] history <snap-name> [--series=<series>] [--arch=<arch>]
  snapcraft [options] close <snap-name> <channel_names>...
  snapcraft [options] list-plugins
  snapcraft [options] tour [<directory>]
  snapcraft [options] update
  snapcraft [options] gated <snap-name>
  snapcraft [options] validate <snap-name> <validation>... [--key-name=<key-name>]
  snapcraft [options] define <part-name>
  snapcraft [options] search [<query> ...]
  snapcraft [options] help (topics | <plugin> | <topic>) [--devel]
  snapcraft (-h | --help)
  snapcraft --version
```

So I guess this just needs to be updated to 'snapcraft list-plugins' ?

Cheers,

[Sergio Schvezov (sergiusens)]

We actually want to support the `plugins` alias.

Thanks!

[Albert Astals Cid (aacid)]

https://github.com/snapcore/snapcraft/pull/959