PR Prelude

Thank you for working on YCM! :)

Please complete these steps and check these boxes (by putting an x inside the brackets) before filing your PR:

I have read and understood YCM's CONTRIBUTING document.
I have read and understood YCM's CODE_OF_CONDUCT document.
I have included tests for the changes in my PR. If not, I have included a rationale for why I haven't.
I understand my PR may be closed if it becomes obvious I didn't actually perform all of these steps.

Why this change is necessary and useful

[Please explain in detail why the changes in this PR are needed.]