2.7.3-28: fix bogus dates in changelog
    
    * Fri Feb 22 2013 David Malcolm <dmalcolm@redhat.com> - 2.7.3-28
    - fix bogus dates in changelog
    
    rpm was emitting:
      warning: bogus date in %changelog: Wed Jun  7 2003 Mihai Ibanescu <misa@redhat.com> 2.2.3-2
      warning: bogus date in %changelog: Tue Jun  6 2003 Mihai Ibanescu <misa@redhat.com> 2.2.3-1
    
    Note that commit bfd896bfafe7f37df3d96189fde31bec50ba0cae has:
    
      Author: cvsdist <cvsdist@fedoraproject.org>
      Date:   Thu Sep 9 11:03:21 2004 +0000
    
        auto-import changelog data from python-2.2.3-7.src.rpm
    
        [...snip...]
    
        Sat Jun 07 2003 Mihai Ibanescu <misa@redhat.com> 2.2.3-2
        - Rebuilt
        Fri Jun 06 2003 Mihai Ibanescu <misa@redhat.com> 2.2.3-1
        - Upgraded to 2.2.3
    
    and:
    
    $ python -c "from datetime import *; d1 = date(2003, 6, 7); print(d1.isoformat()); print(d1.isoweekday())"
    2003-06-07
    6
    
    where isoweekday 6 is indeed Saturday