print/latex-biber: Downgrade to 2.19

In some scenarios, v2.20 did not work sufficiently with biblatex v3.19.
As recommended, switch back to v2.19. Therefore, partial revert of the
commit 59b78e28ea.

Retained from the previous commit:
- Textual corrections to the port
- Pet portlint by rearranging Makefile entries
- Keeping the customizations for test environment

Reported by:	Clemens Heitzinger (via private mail)

MFH:		2024Q4

print/latex-biber/Makefile

@@ -2,8 +2,8 @@ PORTNAME=	biber
 # https://sourceforge.net/projects/biblatex-biber/files/biblatex-biber/development/documentation/biber.pdf/download
 # Keep this in-sync with biblatex.sty (currently at 3.19).
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.20
-PORTEPOCH=	1
+DISTVERSION=	2.19
+PORTEPOCH=	2
 CATEGORIES=	print perl5
 PKGNAMEPREFIX=	latex-
 DIST_SUBDIR=	TeX
@@ -68,6 +68,8 @@ GH_ACCOUNT=	plk
 USE_PERL5=	modbuild
 USE_TEX=	texmf
 
+# t/remote-files.t .......... Dubious, test returned 1 (wstat 256, 0x100)
+# Failed 1/52 test programs. 1/1268 subtests failed.
 TEST_ENV+=	BIBER_DEV_TESTS=1
 
 NO_ARCH=	yes

print/latex-biber/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1723979750
-SHA256 (TeX/plk-biber-v2.20_GH0.tar.gz) = 19f0312e59bf2f5711b8d69b3585a0ca894c36574f086fbb8d53ccd5c0a45ff9
-SIZE (TeX/plk-biber-v2.20_GH0.tar.gz) = 1632745
+TIMESTAMP = 1729444061
+SHA256 (TeX/plk-biber-v2.19_GH0.tar.gz) = 1c1266bc8adb1637c4c59e23c47d919c5a38da4e53544a3c22c21de4a68fc9fe
+SIZE (TeX/plk-biber-v2.19_GH0.tar.gz) = 1634803

print/latex-biber/pkg-plist

@@ -1,33 +1,4 @@
 bin/biber
-%%PERL5_MAN1%%/biber.1.gz
-%%PERL5_MAN3%%/Biber.3.gz
-%%PERL5_MAN3%%/Biber::Annotation.3.gz
-%%PERL5_MAN3%%/Biber::Config.3.gz
-%%PERL5_MAN3%%/Biber::Constants.3.gz
-%%PERL5_MAN3%%/Biber::DataList.3.gz
-%%PERL5_MAN3%%/Biber::DataLists.3.gz
-%%PERL5_MAN3%%/Biber::DataModel.3.gz
-%%PERL5_MAN3%%/Biber::Date::Format.3.gz
-%%PERL5_MAN3%%/Biber::Entries.3.gz
-%%PERL5_MAN3%%/Biber::Entry.3.gz
-%%PERL5_MAN3%%/Biber::Entry::Name.3.gz
-%%PERL5_MAN3%%/Biber::Entry::Names.3.gz
-%%PERL5_MAN3%%/Biber::Input::file::biblatexml.3.gz
-%%PERL5_MAN3%%/Biber::Input::file::bibtex.3.gz
-%%PERL5_MAN3%%/Biber::Internals.3.gz
-%%PERL5_MAN3%%/Biber::LaTeX::Recode.3.gz
-%%PERL5_MAN3%%/Biber::LangTag.3.gz
-%%PERL5_MAN3%%/Biber::LangTags.3.gz
-%%PERL5_MAN3%%/Biber::Output::base.3.gz
-%%PERL5_MAN3%%/Biber::Output::bbl.3.gz
-%%PERL5_MAN3%%/Biber::Output::bblxml.3.gz
-%%PERL5_MAN3%%/Biber::Output::biblatexml.3.gz
-%%PERL5_MAN3%%/Biber::Output::bibtex.3.gz
-%%PERL5_MAN3%%/Biber::Output::dot.3.gz
-%%PERL5_MAN3%%/Biber::Section.3.gz
-%%PERL5_MAN3%%/Biber::Sections.3.gz
-%%PERL5_MAN3%%/Biber::UCollate.3.gz
-%%PERL5_MAN3%%/Biber::Utils.3.gz
 %%SITE_PERL%%/Biber.pm
 %%SITE_PERL%%/Biber/Annotation.pm
 %%SITE_PERL%%/Biber/Config.pm
@@ -63,3 +34,32 @@ bin/biber
 %%SITE_PERL%%/Biber/biber-tool.conf
 %%SITE_PERL%%/Biber/config.rnc
 %%SITE_PERL%%/Biber/config.rng
+%%PERL5_MAN1%%/biber.1.gz
+%%PERL5_MAN3%%/Biber.3.gz
+%%PERL5_MAN3%%/Biber::Annotation.3.gz
+%%PERL5_MAN3%%/Biber::Config.3.gz
+%%PERL5_MAN3%%/Biber::Constants.3.gz
+%%PERL5_MAN3%%/Biber::DataList.3.gz
+%%PERL5_MAN3%%/Biber::DataLists.3.gz
+%%PERL5_MAN3%%/Biber::DataModel.3.gz
+%%PERL5_MAN3%%/Biber::Date::Format.3.gz
+%%PERL5_MAN3%%/Biber::Entries.3.gz
+%%PERL5_MAN3%%/Biber::Entry.3.gz
+%%PERL5_MAN3%%/Biber::Entry::Name.3.gz
+%%PERL5_MAN3%%/Biber::Entry::Names.3.gz
+%%PERL5_MAN3%%/Biber::Input::file::biblatexml.3.gz
+%%PERL5_MAN3%%/Biber::Input::file::bibtex.3.gz
+%%PERL5_MAN3%%/Biber::Internals.3.gz
+%%PERL5_MAN3%%/Biber::LaTeX::Recode.3.gz
+%%PERL5_MAN3%%/Biber::LangTag.3.gz
+%%PERL5_MAN3%%/Biber::LangTags.3.gz
+%%PERL5_MAN3%%/Biber::Output::base.3.gz
+%%PERL5_MAN3%%/Biber::Output::bbl.3.gz
+%%PERL5_MAN3%%/Biber::Output::bblxml.3.gz
+%%PERL5_MAN3%%/Biber::Output::biblatexml.3.gz
+%%PERL5_MAN3%%/Biber::Output::bibtex.3.gz
+%%PERL5_MAN3%%/Biber::Output::dot.3.gz
+%%PERL5_MAN3%%/Biber::Section.3.gz
+%%PERL5_MAN3%%/Biber::Sections.3.gz
+%%PERL5_MAN3%%/Biber::UCollate.3.gz
+%%PERL5_MAN3%%/Biber::Utils.3.gz