License year range updated
minor #668 License year range updated (peterkokot)

This PR was merged into the 2.3 branch.

Discussion
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License year range updated

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | none
| License       | MIT
| Doc PR        | none

Commits
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c123286 License year range updated