Drew Jaynes (DrewAPicture) 7c421791c2 Remove return descriptions from the DocBlocks for add_image_size() and set_post_thumbnail_size() as they don't return anything.
Also document the `$_wp_additional_image_sizes` global, leveraged in `add_image_size()`.

Props stevegrunwell.
Fixes #30511.


git-svn-id: https://develop.svn.wordpress.org/trunk@30633 602fd350-edb4-49c9-b593-d223f7449a82
2014-11-30 05:48:03 +00:00
2014-08-21 02:53:16 +00:00
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