Fixed a plural issue

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |
minor #3605 Fixed a plural issue (benjaminpaap)

This PR was merged into the 2.3 branch.

Discussion
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Fixed a plural issue

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
-------

1fa4fee Fixed a plural issue