[wp-trac] [WordPress Trac] #38590: Don't use `get_available_languages()` in `_load_textdomain_just_in_time()`

[WordPress Trac]

#38590: Don't use `get_available_languages()` in `_load_textdomain_just_in_time()`
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 Reporter:  ocean90       |       Owner:  ocean90
     Type:  defect (bug)  |      Status:  accepted
 Priority:  normal        |   Milestone:  4.7
Component:  I18N          |     Version:  4.6
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Changes (by ocean90):

 * owner:   => ocean90
 * status:  new => accepted
 * milestone:  Future Release => 4.7


Comment:

 We should check the return value of `glob()` before merging it because
 `glob()` returns `false` in case of a failure.

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Ticket URL: <https://core.trac.wordpress.org/ticket/38590#comment:2>
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