Tokenizer::$eolChar: change default value

[jrfnl]

Description

Tokenizer::$eolChar: change default value to be a more logical one. The property is supposed to be a string, so having an array as a default value is confusing.

Suggested changelog entry

N/A

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
  • [ ] This change is only breaking for integrators, not for external standards or end-users.
• [ ] Documentation improvement

[DannyvdSluijs]

Given my "approval" based on the description of the PR and the discussion about a default EOL character which all made sense.

[jrfnl]

Closing as replaced by https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/81