Update to version 1.7, which has the following changes:

1. Use a more reliable method to find the signature and message parts in the ppf_mime script.

2. Add support for the OpenPGP header in ppf_sign and ppf_encrypt, and use the same method to sanitize the key ID as was already done for the other headers.

For the port:

1. Update the URL to the web site
2. Switch to PLIST_FILES and PORTDOCS macros