John Blackbourn 614b866cb0 Plugins: Correct the documented allowable types for to the $callback parameter of various hook related functions. ...

These functions don't require the callback to be a valid callable, therefore `array` and `string` are also valid types for this parameter.

Props malthert

Fixes #54440

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git-svn-id: http://core.svn.wordpress.org/trunk@51892 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2021-12-01 13:22:01 +00:00

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