"Unknown argument: input" when specifying `--no-input`

[AbigailBuccaneer]

Is this a feature request or a bug?

A bug.

What is the current behavior?

Currently --no-input is treated as an invalid argument. Passing --no-input=true works, but is cumbersome and surprising to users of the CLI.

$ web-ext lint --no-input 
web-ext lint

Validate the extension source

Options:
  --version                 Show version number                        [boolean]
  --source-dir, -s          Web extension source directory.
      [string] [required] [default: "/home/abigail/code/firefox-ctrlnumber/src"]
  --artifacts-dir, -a       Directory where artifacts will be saved.
                                                   [string] [required] [default:
                  "/home/abigail/code/firefox-ctrlnumber/src/web-ext-artifacts"]
  --verbose, -v             Show verbose output                        [boolean]
  --ignore-files, -i        A list of glob patterns to define which files should
                            be ignored. (Example:
                            --ignore-files=path/to/first.js path/to/second.js
                            "**/*.log")                                  [array]
  --no-input                Disable all features that require standard input
                                                                       [boolean]
  --config, -c              Path to a CommonJS config file to set option
                            defaults                                    [string]
  --config-discovery        Discover config files in home directory and working
                            directory. Disable with --no-config-discovery.
                                                       [boolean] [default: true]
  --output, -o              The type of output to generate
                            [string] [choices: "json", "text"] [default: "text"]
  --metadata                Output only metadata as JSON
                                                      [boolean] [default: false]
  --warnings-as-errors, -w  Treat warnings as errors by exiting non-zero for
                            warnings                  [boolean] [default: false]
  --pretty                  Prettify JSON output      [boolean] [default: false]
  --self-hosted             Your extension will be self-hosted. This disables
                            messages related to hosting on addons.mozilla.org.
                                                      [boolean] [default: false]
  --boring                  Disables colorful shell output
                                                      [boolean] [default: false]
  -h, --help                Show help                                  [boolean]

Unknown argument: input
$

What is the expected or desired behavior?

--no-input should be treated equivalently to --no-input=true.

Version information (for bug reports)

$ node --version
v13.10.1
$ yarn --version
1.22.4
$ web-ext --version
4.1.0