Fix contrib/rpm/bulidah.spec changelog date
Fix contrib/rpm/bulidah.spec changelog date

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

Closes: #1283
Approved by: rhatdan

nalind/buildah-1,projectatomic/buildah,rhatdan/buildah,projectatomic/buildah,rhatdan/buildah,nalind/buildah,TomSweeneyRedHat/buildah,nalind/buildah,rhatdan/buildah,ipbabble/buildah,nalind/buildah-1,TomSweeneyRedHat/buildah,nalind/buildah-1,TomSweeneyRedHat/buildah,projectatomic/buildah,ipbabble/buildah