[MacPorts] #50861: grep @2.23_0: Update to 2.24

[MacPorts]

#50861: grep @2.23_0: Update to 2.24
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 Reporter:  mschamschula@…       |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.3.4
 Keywords:  haspatch maintainer  |       Port:  grep
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 grep has been updated to version 2.24. New this version:

 ** Bug fixes
 {{{
   grep -z would match strings it should not.  To trigger the bug, you'd
   have to use a regular expression including an anchor (^ or $) and a
   feature like a range or a backreference, causing grep to forego its DFA
   matcher and resort to using re_search.  With a multibyte locale, that
   matcher could mistakenly match a string containing a newline.
   For example, this command:
     printf 'a\nb\0' | LC_ALL=en_US.utf-8 grep -z '^[a-b]*b'
   would mistakenly match and print all four input bytes.  After the fix,
   there is no match, as expected.
   [bug introduced in grep-2.7]

   grep -Pz now diagnoses attempts to use patterns containing ^ and $,
   instead of mishandling these patterns.  This problem seems to be
   inherent to the PCRE API; removing this limitation is on PCRE's
   maint/README wish list.  Patterns can continue to match literal ^
   and $ by escaping them with \ (now needed even inside [...]).
   [bug introduced in grep-2.5]
 }}}

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Ticket URL: <https://trac.macports.org/ticket/50861>
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