Request for review/upload of gpart 1:0.3-6

[Aleksey Kravchenko]

Hello team.

I've prepared  gpart 1:0.3-6 package [1] with minimal changes:
  * Import upstream patches to fix division by zero (Closes: #848881).
  * Bump std-version to 4.3.0.
  * Add upstream metadata.

Please review and upload.

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

  Best wishes,
  Aleksey.