The 2.0 series of GnuPG will stop receiving upstream support at the the
end of the year:

"GnuPG 2.0 is an older branch of GnuPG. This branch will reach end-of-life on
2017-12-31." [0]

These patches adjust the two packages that use gnupg-2.0 to prepare for removing
or deprecating that package.

[0] https://gnupg.org/download/index.html