[MacPorts] #54473: nginx @1.13.2: update to 1.13.3

[MacPorts]

#54473: nginx @1.13.2: update to 1.13.3
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 Reporter:  l2dy      |      Owner:  neverpanic
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  security  |       Port:  nginx
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 A security issue was identified in nginx range filter.  A specially
 crafted request might result in an integer overflow and incorrect
 processing of ranges, potentially resulting in sensitive information
 leak (CVE-2017-7529).

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Ticket URL: <https://trac.macports.org/ticket/54473>
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