gnupg: 2.1.22 -> 2.1.23

This release in a RC for gnupg-2.2. The main difference as far as
nixpkgs is concerned is that the binary `gpg2` is now called `gpg` and
`gpgv2` is called `gpgv`.

This update fixed all explicit use of `gpg2` and `gpgv2` across nixpkgs,
but there might be some packaged software that internally use `gpg2`
not handeled by this commit.

See http://lists.gnu.org/archive/html/info-gnu/2017-08/msg00001.html
for full release information

pkgs/tools/misc/debian-devscripts/default.nix

@@ -27,10 +27,10 @@ in stdenv.mkDerivation rec {
     mkdir -p "$tgtpy"
     export PYTHONPATH="$PYTHONPATH''${PYTHONPATH:+:}$tgtpy"
     find po4a scripts -type f -exec sed -r \
-      -e "s@/usr/bin/gpg(2|)@${gnupg}/bin/gpg2@g" \
+      -e "s@/usr/bin/gpg(2|)@${gnupg}/bin/gpg@g" \
       -e "s@/usr/(s|)bin/sendmail@${sendmailPath}@g" \
       -e "s@/usr/bin/diff@${diffutils}/bin/diff@g" \
-      -e "s@/usr/bin/gpgv(2|)@${gnupg}/bin/gpgv2@g" \
+      -e "s@/usr/bin/gpgv(2|)@${gnupg}/bin/gpgv@g" \
       -e "s@(command -v|/usr/bin/)curl@${curl.bin}/bin/curl@g" \
       -i {} +
     sed -e "s@/usr/share/sgml/[^ ]*/manpages/docbook.xsl@${docbook_xsl}/xml/xsl/docbook/manpages/docbook.xsl@" -i scripts/Makefile