[MacPorts] #43822: grep updated to 2.19

[MacPorts]

#43822: grep updated to 2.19
-----------------------------+--------------------------------
  Reporter:  mschamschula@…  |      Owner:  macports-tickets@…
      Type:  update          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.3.0
Resolution:                  |   Keywords:
      Port:  grep            |
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Comment (by mschamschula@…):

 {{{
 Performance was improved, though the performance of "grep -P" in UTF-8
 locales
 was negatively impacted by some bug fixes. Many pattern handling errors
 and
 inconsistencies were fixed. "grep -P" now works with "-w" and "-x" and
 backreferences. Output of separators is now consistent. Other minor bugs
 were
 fixed.
 }}}

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Ticket URL: <https://trac.macports.org/ticket/43822#comment:1>
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