[RTEMS Project] #4654: pfctl: Fix global state initialization (cloned)

[RTEMS trac]

#4654: pfctl: Fix global state initialization (cloned)
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  Reporter:  Sebastian Huber  |      Owner:  Sebastian Huber
      Type:  defect           |     Status:  assigned
  Priority:  normal           |  Milestone:  6.1
 Component:  network/libbsd   |    Version:  5
  Severity:  normal           |   Keywords:
Blocked By:                   |   Blocking:
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 Cloned from #4653:
 ----
 The last update introduced a static variable in get_query_socket() which
 was not initialized.

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Ticket URL: <http://devel.rtems.org/ticket/4654>
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