Consume z.current prepared by Reader.Read in Reader.WriteTo (#50)
Consume z.current prepared by Reader.Read in Reader.WriteTo (#50)

... to fix missing data when WriteTo is called after Read.

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>
klauspost/pgzip