[MacPorts] #50202: update samtools to 1.3

[MacPorts]

#50202: update samtools to 1.3
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 Reporter:  markd@…  |      Owner:  macports-tickets@…
     Type:  update   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.3.4
 Keywords:           |       Port:
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 Please update samtools port to the 1.3 release

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Ticket URL: <https://trac.macports.org/ticket/50202>
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