[MacPorts] #27123: update grep to 2.7

[MacPorts]

#27123: update grep to 2.7
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 Reporter:  ikawnoclast@…          |       Owner:  macports-tickets@…                   
     Type:  update                 |      Status:  new                                  
 Priority:  Normal                 |   Milestone:                                       
Component:  ports                  |     Version:                                       
 Keywords:  haspatch               |        Port:  grep                                 
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 The current version of GNU grep is 2.7. I have submitted a patch file for
 the update.

 The patch file associated with this port remains unchanged.

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Ticket URL: <https://trac.macports.org/ticket/27123>
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