[wp-trac] [WordPress Trac] #45203: Document all optional parameters as optional in add_image_size()

[WordPress Trac]

#45203: Document all optional parameters as optional in add_image_size()
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 Reporter:  DrewAPicture    |       Owner:  (none)
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  Future Release
Component:  Media           |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  good-first-bug  |     Focuses:  docs
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Comment (by andrewza):

 This my first WordPress core commit, hope this is right! Still getting the
 hang of it! #Contribute!

 This patch adjusts the doc block.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45203#comment:3>
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