Log Message:
p5-Email-MIME: update to 1.946.

1.946     2017-08-31 09:29:41-04:00 America/New_York
        - propagate encode_check to subparts (thanks, Michael McClimon)
        - use the new parse_content_disposition function in
          Email::MIME::ContentType (thanks, Pali Rohár)
        - fix a bug in AddressList handling (thanks, Pali Rohár)