Update Python 2 dependency declarations to new packaging standards

lv2.spec

@@ -2,7 +2,7 @@
 
 Name:           lv2
 Version:        1.14.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        Audio Plugin Standard
 
 # lv2specgen template.html is CC-AT-SA
@@ -10,10 +10,10 @@ License:        ISC
 URL:            http://lv2plug.in
 Source:         http://lv2plug.in/spec/lv2-%{version}.tar.bz2
 
-BuildRequires:  doxygen graphviz python-rdflib
+BuildRequires:  doxygen graphviz python2-rdflib
 BuildRequires:  libsndfile-devel
 BuildRequires:  gcc
-BuildRequires:  python-pygments
+BuildRequires:  python2-pygments
 BuildRequires:  python2-devel
 
 # this package replaces lv2core 
@@ -121,6 +121,10 @@ rm -rf %buildroot
 %{_pkgdocdir}/
 
 %changelog
+* Wed Feb 07 2018 Iryna Shcherbina <ishcherb@redhat.com> - 1.14.0-5
+- Update Python 2 dependency declarations to new packaging standards
+  (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
+
 * Thu Aug 03 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.14.0-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild