Fix stack level too deep error if target directory contains **

[unasuke]

RuboCop exits with SystemStackError because "stack level too deep" if the target directory has the "**" directory.

foo
└── **
    └── bar.rb

Traceback (most recent call last):
        9197: from exe/rubocop:12:in `<main>'
        9196: from /Users/unasuke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/benchmark.rb:308:in `realtime'
        9195: from exe/rubocop:13:in `block in <main>'
        9194: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/cli.rb:41:in `run'
        9193: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/cli.rb:72:in `execute_runners'
        9192: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/cli.rb:65:in `run_command'
        9191: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/cli/environment.rb:18:in `run'
        9190: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/cli/command.rb:11:in `run'
         ... 9185 levels...
           4: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/target_finder.rb:101:in `wanted_dir_patterns'
           3: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/target_finder.rb:101:in `flat_map'
           2: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/target_finder.rb:101:in `each'
           1: from /Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/target_finder.rb:101:in `block in wanted_dir_patterns'
/Users/unasuke/src/github.com/rubocop-hq/rubocop/lib/rubocop/target_finder.rb:97:in `wanted_dir_patterns': stack level too deep (SystemStackError)

If directory name end with /**/, escape dir name to /\**\ to inspect files under the **/ directory.

---

Before submitting the PR make sure the following are checked:

• Wrote good commit messages.
• Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.
• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Run bundle exec rake default. It executes all tests and RuboCop for itself, and generates the documentation.

[unasuke]

I need advice on what to do windows environment...

[unasuke]

Cannot create a directory with containing * charactor on Windows.
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions

So I disabled the test case in Windows...

[koic]

👍

[bbatsov]

The changes look good, but your branch has to be rebased on top of the current master branch due to merge conflicts.

[marcandre]

The changes look good, but your branch has to be rebased on top of the current master branch due to merge conflicts.

In the future, you can use the new way to handle changelog entries (rake changelog:..., see CONTRIBUTING) to avoid these :-)

[unasuke]

Thank you. I rebased this.

[koic]

Thanks!