[MacPorts] #56440: aspell-dict-bg: add license and fixup Portfile

[MacPorts]

#56440: aspell-dict-bg: add license and fixup Portfile
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  Reporter:  aque            |      Owner:  sava.chankov@…
      Type:  update          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.4.4
Resolution:                  |   Keywords:  haspatch
      Port:  aspell-dict-bg  |
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Changes (by aque):

 * Attachment "aspell-dict-bg-1.patch" added.

 whitespace fix

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Ticket URL: <https://trac.macports.org/ticket/56440>
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