The `rest_{$taxonomy}_collection_params` filter in 4.7 is incorrectly using single quotes instead of double quotes, which means it is not working correctly as a dynamic filter. This fixes the quotes around the filter name, and also updates the docblocks for the other 3 similar filters for better conformance to the documentation standards.
Merge of [39621] to the 4.7 branch.
Props shazahm1hotmailcom, JPry, jnylen0.
Fixes#39300.
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