minor #11483 fix some docblocks (xabbuh)
minor #11483 fix some docblocks (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
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fix some docblocks

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

Commits
-------

1775da5 fix some docblocks

symfony/Intl,symfony/Intl,oswaldderiemaecker/Intl,oswaldderiemaecker/Intl