Update Python 2 dependency declarations to new packaging standards

python-pygit2.spec

@@ -6,7 +6,7 @@
 
 Name:           python-%{pkgname}
 Version:        0.26.3
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Python bindings for libgit2
 
 License:        GPLv2 with linking exception
@@ -62,7 +62,7 @@ Python 3 version.
 %package        doc
 Summary:        Documentation for %{name}
 BuildArch:      noarch
-BuildRequires:  python-sphinx
+BuildRequires:  %{_bindir}/sphinx-build
 
 %description    doc
 Documentation for %{name}.
@@ -128,6 +128,10 @@ find %{buildroot} -name '*.so' -exec chmod 755 {} ';'
 
 
 %changelog
+* Mon Feb 12 2018 Iryna Shcherbina <ishcherb@redhat.com> - 0.26.3-3
+- Update Python 2 dependency declarations to new packaging standards
+  (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.26.3-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild