Dpkg::Changelog::Debian parses Debian changelogs as described in the Debian
policy (version 188.8.131.52 at the time of this writing). See section
``SEE ALSO'' for locations where to find this definition.
The parser tries to ignore most cruft like # or /* */ style comments,
CVS comments, vim variables, emacs local variables and stuff from
older changelogs with other formats at the end of the file.
NOTE: most of these are ignored silently currently, there is no
parser error issued for them. This should become configurable in the
Read the filehandle and parse a Debian changelog in it. Returns the number
of changelog entries that have been parsed with success.