minor #13579 [Validator] fix DOS-style line endings (nicolas-grekas)
minor #13579 [Validator] fix DOS-style line endings (nicolas-grekas)

This PR was merged into the 2.3 branch.

Discussion
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[Validator] fix DOS-style line endings

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
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603fec5 [Validator] fix DOS-style line endings

bocharsky-bw/Validator,symfony/Validator,spolischook/Validator