[full-ci] Fix a typo in a comment

[phil-davis]

Description

Just to check the results of CI in core - to see if they are passing OK.

How Has This Been Tested?

CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[phil-davis]

https://drone.owncloud.com/owncloud/core/36953/9/6

+ su-exec www-data bash tests/drone/test-phpunit.sh

/bin/sh: 39: su-exec: not found

Related to change in docker images, that removed su-exec. I will make a PR like owncloud-docker/base#231 to fix this.

[phil-davis]

See #40409 for the PR that just fixes CI.