[MacPorts] #51354: clamav: change pcre dependency in favor to pcre2

[MacPorts]

#51354: clamav: change pcre dependency in favor to pcre2
----------------------+--------------------------------
 Reporter:  sierkb@…  |      Owner:  macports-tickets@…
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.3.4
 Keywords:            |       Port:  clamav
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 Clamav now is capable of '''PCRE2''' as well as PCRE since version 0.99.2,
 with prioritizing PCRE2 over PCRE if both are found:

 [https://github.com/vrtadmin/clamav-
 devel/commit/85131d40f29900109798b1af4a71d79e8ff996a9 PCRE2 support], 8
 Feb 2016.

 [https://github.com/vrtadmin/clamav-
 devel/commit/46b4fbfb6a234458406fce6c69638a83b09b3ab8 clamconf: reports
 usage of PCRE2], 8 Feb 2016.

 [https://github.com/vrtadmin/clamav-
 devel/commit/0d0e0e61d3957fadcdc23145aaf7bfd84e9d3293 pcre: change pcre
 config and add pcre2 config], 4 Feb 2016.

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Ticket URL: <https://trac.macports.org/ticket/51354>
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