[wp-trac] [WordPress Trac] #30830: Remove unnecessary space after class="postbox when postbox_classes returns an empty string in metaboxes

[WordPress Trac]

#30830: Remove unnecessary space after class="postbox when postbox_classes returns
an empty string in metaboxes
----------------------------+------------------------------
 Reporter:  ShinichiN       |       Owner:
     Type:  defect (bug)    |      Status:  new
 Priority:  lowest          |   Milestone:  Awaiting Review
Component:  Administration  |     Version:  3.0
 Severity:  trivial         |  Resolution:
 Keywords:                  |     Focuses:  ui
----------------------------+------------------------------
Changes (by DrewAPicture):

 * focuses:  administration => ui
 * component:  General => Administration


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Ticket URL: <https://core.trac.wordpress.org/ticket/30830#comment:3>
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