[wp-trac] [WordPress Trac] #29127: Bundled Themes: fix escaping and minor code style issues

[WordPress Trac]

#29127: Bundled Themes: fix escaping and minor code style issues
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 Reporter:  lancewillett             |       Owner:
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  Future Release
Component:  Bundled Theme            |     Version:
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:
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Comment (by SergeyBiryukov):

 Replying to [comment:4 obenland]:
 > * In `header.php`: Adding `esc_url()` around `header_image()` will not
 work, as it echoes its content.

 It's also not needed, as `header_image()` is already escaped. See #23664.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29127#comment:5>
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