[MacPorts] #50851: libbiosig @1.7.6: update to 1.7.7

[MacPorts]

#50851: libbiosig @1.7.6: update to 1.7.7
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 Reporter:  christsc@…           |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:
 Keywords:  haspatch maintainer  |       Port:  libbiosig
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 Minor improvements. Most importantly, it fixes another nasty bug in CFS
 file format, when reading physical units with trailing spaces.

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Ticket URL: <https://trac.macports.org/ticket/50851>
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