Fix dates in %changelog
    
    Fixes
    error: Bad exit status from /var/tmp/rpm-tmp.SuBLvm (%install)
        bogus date in %changelog: Mon Nov 20 2012 Zeeshan Ali <zeenix@redhat.com> - 3.7.2-1
        bogus date in %changelog: Mon Oct 16 2012 Zeeshan Ali <zeenix@redhat.com> - 3.6.1.1-2
        bogus date in %changelog: Mon Oct 16 2012 Zeeshan Ali <zeenix@redhat.com> - 3.6.1.1-1
        bogus date in %changelog: Mon May 15 2012 Zeeshan Ali <zeenix@redhat.com> - 3.4.2-1
        bogus date in %changelog: Thu Jan 17 2012 Christophe Fergeau <cfergeau@redhat.com> - 3.3.4-2
        bogus date in %changelog: Thu Jan 17 2012 Christophe Fergeau <cfergeau@redhat.com> - 3.3.4-1
        Bad exit status from /var/tmp/rpm-tmp.SuBLvm (%install)