Request to review and upload libpff_20180714-2

[Aleksey Kravchenko <rhash.admin@gmail.com>]

Hello team,

I've fixed libpff dependency on Python 2 (Closes #936901) and lintian
warnings,

producing the libpff_20180714-2 package [1].

Please review it and upload!

[1] https://salsa.debian.org/pkg-security-team/libpff

  Regards,
  Aleksey