This formula does not install either `gpg` or `gpgv` executables into
the PATH.
If you simply require `gpg` and `gpgv` executables without explicitly
needing GnuPG 1.x we recommend:
brew install gnupg
If you really need to use these tools without the "1" suffix you can
add a "gpgbin" directory to your PATH like:
PATH="$HOMEBREW_PREFIX/opt/gnupg@1.4/libexec/gpgbin:$PATH"
Note that doing so may interfere with GPG-using formulae installed via
Homebrew.