This thing reads an email, parses and decodes its headers and prints them out.
Might come in handy when stuff is MIME encoded or inconsistent indentation
makes scanning the headers with human eyes difficult.  As a side effect of how
mail.DecodeHeader (std lib) works, several values of the same header name are
collected and printed together, which makes e.g. checking ARC results easier.


Although the threshold of originality is miniscule, it is still licensed with
AGPL.