Remove unnecessary printf(). fixes #25321.

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Move to JSON for three api.wordpress.org endpoints. see #25311.

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Move to JSON for the plugin and theme update-check API endpoints. see #25311.

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Don't allow critical scripts to be deregistered on wp-login.php, just as we do in the rest of the admin.

props atimmer.
fixes #25017.

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Introduce a img_caption_shortcode_width filter for controlling the inline style of the image caption shortcode.

props iandunn for the initial patch.
fixes #14380.

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Introduce wp_get_sites(), a long-awaited replacement for get_blog_list().

props jeremyfelt.
see #14511.

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Proper treatment of the 'archived' field in wp_get_sites(). see #14511.

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