Comment 5 for bug 1808301

2019-04-14 Version 0.9.2
    - Fix the arcsign script so it works with the current API (Note: the new
      srv_id option is the authserv_id to use in the ARC signatures - Only AR
      fields with an authserv-id that matches srv_id will be considered for
      ARC signing)
    - Fix cv=none processing for initial signature in chain
    - Add additional text documenting use of srv_id for ARC signing to
      docstrings and man 1 arcsign (LP: #1808301)
    - Use same line seperator for output as input in dkimsign/arcsign
      (LP: #1808686)
    - Refactor canonicalization.py strip_trailing_lines to avoid using re for
      more consistent processing across python versions (Thanks to Jonathan
      Bastien-Filiatrault for the change)
    - Refactor header folding for more consistent results, including reduced
      stray whitespace (Also Jonathan Bastien-Filiatrault)
    - Don't log message headers and body unless explicitely requested. This
      should also reduce memory usage on large messages. (Jonathan
      Bastien-Filiatrault)
    - Clarify the crlf does not count towards line length in fold
    - Adjust fold maxlen to one shorter for lines after the first, since they
      already have a leading space (LP: #1823008)