Update Python 2 dependency declarations to new packaging standards

icu.spec

@@ -2,7 +2,7 @@
 
 Name:      icu
 Version:   60.2
-Release:   2%{?dist}
+Release:   3%{?dist}
 Summary:   International Components for Unicode
 
 License:   MIT and UCD and Public Domain
@@ -10,7 +10,7 @@ URL:       http://www.icu-project.org/
 Source0:   http://download.icu-project.org/files/icu4c/60.2/icu4c-60_2-src.tgz
 Source1:   icu-config.sh
 
-BuildRequires: doxygen, autoconf, python
+BuildRequires: doxygen, autoconf, python2
 Requires: lib%{name}%{?_isa} = %{version}-%{release}
 
 Patch4: gennorm2-man.patch
@@ -185,6 +185,10 @@ LD_LIBRARY_PATH=lib:stubdata:tools/ctestfw:$LD_LIBRARY_PATH bin/uconv -l
 
 
 %changelog
+* Thu Mar 15 2018 Iryna Shcherbina <ishcherb@redhat.com> - 60.2-3
+- Update Python 2 dependency declarations to new packaging standards
+  (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 60.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild