[MacPorts] #28353: Bump eggdrop to 1.6.20

[MacPorts]

#28353: Bump eggdrop to 1.6.20
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 Reporter:  dre@…        |       Owner:  macports-tickets@…                   
     Type:  update       |      Status:  new                                  
 Priority:  Normal       |   Milestone:                                       
Component:  ports        |     Version:  1.9.2                                
 Keywords:               |        Port:                                       
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 Attaching two files; an updated Portfile and updated Makefile.in patch
 file.

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Ticket URL: <https://trac.macports.org/ticket/28353>
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