This aims to clarify a few inline comments related to removing percent-encoded characters and HTML entities.
Affected functions:
* `sanitize_user()`
* `sanitize_title_with_dashes()`
* `sanitize_html_class()`
* `_sanitize_text_fields()`
* `get_comments_number_text()`
Follow-up to [465], [3454], [11433], [12503], [37987].
Props ace100, tanjimtc71, codemonksuvro, SergeyBiryukov.
Fixes#57712.
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git-svn-id: http://core.svn.wordpress.org/trunk@54879 1a063a9b-81f0-0310-95a4-ce76da25c4cd