Show validation command-line
Show validation command-line

Validation problems can be difficult to debug w/o knowing what options
were passed / how it was called.

Signed-off-by: Chris Evich <352d8596d782a469eafa66a46434e15a449859ce@redhat.com>

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