Build logs have lot of warnings

[prabhakarpujeri]

warning: Macro %build_python defined but not used within scope warning: Macro %as_needed defined but not used within scope warning: Macro %fdupes defined but not used within scope warning: Macro %cppunit_BR defined but not used within scope warning: Macro %valgrind_BR defined but not used within scope warning: bogus date in %changelog: Fri Jul 06 2010 Michael Brown <michael-e_brown at dell.com> - 2.2.26-1 warning: bogus date in %changelog: Fri Jul 06 2010 Michael Brown <michael-e_brown at dell.com> - 2.2.25-1 warning: bogus date in %changelog: Mon Mar 24 2009 Michael E Brown <michael_e_brown at dell.com> - 2.2.16-1 warning: bogus date in %changelog: Mon Mar 24 2009 Michael E Brown <michael_e_brown at dell.com> - 2.2.15-1 warning: bogus date in %changelog: Tue Aug 6 2007 Michael E Brown <michael_e_brown at dell.com> - 0.13.8