Update docs to put prepend as the last line
What does this MR do?
This updates the documentation for our use of prepend
for EE modules, stating that prepend
should be the last line as well as adding some examples on how to better deal with class methods redefined in EE. See https://gitlab.com/gitlab-org/gitlab-ce/issues/53919 and https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/22987 for more information.
Related issues
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/53919
Author's checklist
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Apply the correct labels and milestone -
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Crosslink the document from other subject-related docs
Review checklist
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Your team's review (required) -
Technical writer's review (required)