[MacPorts] #53112: mariadb-10.1: update to 10.1.20

[MacPorts]

#53112: mariadb-10.1: update to 10.1.20
---------------------------+----------------------
  Reporter:  patrixgdd     |      Owner:  pixilla
      Type:  update        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.5
Resolution:                |   Keywords:
      Port:  mariadb-10.1  |
---------------------------+----------------------
Changes (by josephsacco):

 * Attachment "Portfile.diff" added.

 Portfile diff

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Ticket URL: <https://trac.macports.org/ticket/53112>
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