Add support for multiple --ignore-path flags

[kimulaco]

Which issue, if any, is this issue related to?

Closes #4680

Is there anything in the PR that needs further explanation?

No, it's self-explanatory.
Please let me know if I'm missing a unit test.

[changeset-bot]

🦋 Changeset detected

Latest commit: e181e37

The changes in this PR will be included in the next version bump.

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Name	Type
stylelint	Minor

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[ybiquitous]

@kimulaco Thanks for creating the pull request. I've left a comment about backward compatibility, so please confirm it.

[ybiquitous]

Thanks. Almost good. 👍🏼

I've left one more refactoring suggestion, so can you see it?

[ybiquitous]

We may need to update the CLI help and the following documents about the --ignore-path option.
Any thoughts, @jeddy3 ?

stylelint/lib/cli.js

Lines 125 to 129 in bb10282

	--ignore-path, -i
	Path to a file containing patterns that describe files to ignore. The
	path can be absolute or relative to process.cwd(). By default, stylelint
	looks for .stylelintignore in process.cwd().

stylelint/docs/user-guide/usage/cli.md

Lines 59 to 61 in bb10282

	### `--ignore-path, -i`
	A path to a file containing patterns describing files to ignore. The path can be absolute or relative to `process.cwd()`. By default, Stylelint looks for `.stylelintignore` in `process.cwd()`. [More info](options.md#ignorePath).

stylelint/docs/user-guide/usage/options.md

Lines 132 to 136 in bb10282

	## `ignorePath`
	CLI flags: `--ignore-path, -i`
	A path to a file containing patterns describing files to ignore. The path can be absolute or relative to `process.cwd()`. By default, Stylelint looks for `.stylelintignore` in `process.cwd()`.

[jeddy3]

Any thoughts, @jeddy3 ?

ESLint does a good job of this. Let's add "You can repeat the option to provide multiple paths" to those three descriptions, e.g.

"Path to a file containing patterns that describe files to ignore. The path can be absolute or relative to process.cwd(). You can repeat the option to provide multiple paths. By default, Stylelint looks for .stylelintignore in process.cwd(). "

[kimulaco]

@jeddy3 @ybiquitous Thanks. I have updated the document. 268f2af dc3db68

[ybiquitous]

@jeddy3 Thanks, your suggestion is so good. 👍🏼

@kimulaco Thank you for updating the code and docs. LGTM 👍🏼

[jeddy3]

LGTM, thank you!