Fix help text indentation (#4531)

* Check whole help text on system test

* Fix help text indentation

Including TAB in some lines.

* Try `toMatchInlineSnapshot` to verify the help text

See https://jestjs.io/docs/en/snapshot-testing#inline-snapshots

* `toMatchInlineSnapshot()` -> `toMatchSnapshot()`

lib/cli.js

@@ -92,8 +92,8 @@ const meowOptions = {
     Input: Files(s), glob(s), or nothing to use stdin.
 
       If an input argument is wrapped in quotation marks, it will be passed to
-	  globby for cross-platform glob support. node_modules are always ignored.
-	  You can also pass no input and use stdin, instead.
+      globby for cross-platform glob support. node_modules are always ignored.
+      You can also pass no input and use stdin, instead.
 
     Options:
 

system-tests/cli/__snapshots__/cli.test.js.snap

@@ -0,0 +1,139 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`CLI --help 1`] = `
+"
+  A mighty, modern CSS linter.
+
+  Usage: stylelint [input] [options]
+
+  Input: Files(s), glob(s), or nothing to use stdin.
+
+    If an input argument is wrapped in quotation marks, it will be passed to
+    globby for cross-platform glob support. node_modules are always ignored.
+    You can also pass no input and use stdin, instead.
+
+  Options:
+
+    --config
+
+      Path to a specific configuration file (JSON, YAML, or CommonJS), or the
+      name of a module in node_modules that points to one. If no --config
+      argument is provided, stylelint will search for configuration files in
+      the following places, in this order:
+        - a stylelint property in package.json
+        - a .stylelintrc file (with or without filename extension:
+          .json, .yaml, .yml, and .js are available)
+        - a stylelint.config.js file exporting a JS object
+      The search will begin in the working directory and move up the directory
+      tree until a configuration file is found.
+
+    --config-basedir
+
+      An absolute path to the directory that relative paths defining \\"extends\\"
+      and \\"plugins\\" are *relative to*. Only necessary if these values are
+      relative paths.
+
+    --print-config
+
+      Print the configuration for the given path.
+
+    --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().
+
+    --ignore-pattern, --ip
+
+      Pattern of files to ignore (in addition to those in .stylelintignore)
+
+    --syntax, -s
+
+      Specify a syntax. Options: \\"css\\", \\"css-in-js\\", \\"html\\", \\"less\\",
+      \\"markdown\\", \\"sass\\", \\"scss\\", \\"sugarss\\". If you do not specify a syntax,
+      syntaxes will be automatically inferred by the file extensions
+      and file content.
+
+    --fix
+
+      Automatically fix violations of certain rules.
+
+    --custom-syntax
+
+      Module name or path to a JS file exporting a PostCSS-compatible syntax.
+
+    --stdin-filename
+
+      A filename to assign stdin input.
+
+    --ignore-disables, --id
+
+      Ignore styleline-disable comments.
+
+    --disable-default-ignores, --di
+
+      Allow linting of node_modules.
+
+    --cache                       [default: false]
+
+      Store the info about processed files in order to only operate on the
+      changed ones the next time you run stylelint. By default, the cache
+      is stored in \\"./.stylelintcache\\". To adjust this, use --cache-location.
+
+    --cache-location              [default: '.stylelintcache']
+
+      Path to a file or directory to be used for the cache location.
+      Default is \\"./.stylelintcache\\". If a directory is specified, a cache
+      file will be created inside the specified folder, with a name derived
+      from a hash of the current working directory.
+
+      If the directory for the cache does not exist, make sure you add a trailing \\"/\\"
+      on *nix systems or \\"\\\\\\" on Windows. Otherwise the path will be assumed to be a file.
+
+    --formatter, -f               [default: \\"string\\"]
+
+      The output formatter: \\"compact\\", \\"json\\", \\"string\\", \\"unix\\" or \\"verbose\\".
+
+    --custom-formatter
+
+      Path to a JS file exporting a custom formatting function.
+
+    --quiet, -q
+
+      Only register violations for rules with an \\"error\\"-level severity (ignore
+      \\"warning\\"-level).
+
+    --color
+    --no-color
+
+      Force enabling/disabling of color.
+
+    --report-needless-disables, --rd
+
+      Also report errors for stylelint-disable comments that are not blocking a lint warning.
+      The process will exit with code 2 if needless disables are found.
+
+    --report-invalid-scope-disables, --risd
+
+      Report stylelint-disable comments that used for rules that don't exist within the configuration object.
+      The process will exit with code 2 if invalid scope disables are found.
+
+    --max-warnings, --mw
+
+      Number of warnings above which the process will exit with code 2.
+      Useful when setting \\"defaultSeverity\\" to \\"warning\\" and expecting the
+      process to fail on warnings (e.g. CI build).
+
+    --output-file, -o
+
+      Path of file to write report.
+
+    --version, -v
+
+      Show the currently installed version of stylelint.
+
+    --allow-empty-input, --aei
+
+      When glob pattern matches no files, the process will exit without throwing an error.
+"
+`;

system-tests/cli/cli.test.js

@@ -54,7 +54,7 @@ describe('CLI', () => {
 			const lastCallArgs = console.log.mock.calls.pop();
 
 			expect(lastCallArgs).toHaveLength(1);
-			expect(lastCallArgs.pop()).toMatch('Usage: stylelint [input] [options]');
+			expect(lastCallArgs.pop()).toMatchSnapshot();
 		});
 	});