Change logs for unidic-mecab source package in Hirsute

unidic-mecab (2.3.0+dfsg-6) unstable; urgency=medium

  * debian/control
    - use https for upstream Homepage
    - set Standards-Version: 4.5.0
    - use dh12
    - drop debhelper
    - add Rules-Requires-Root: no
    - drop . from description to avoid description-contains-invalid-control-statement
  * debian/copyright
    - use https for copyright format 1.0 URL
    - deal with upstream download page change
    - update copyright year
  * debian/README.Debian: fix typo
  * debian/watch: fix debian-watch-file-should-mangle-version

 -- Hideki Yamane <email address hidden>  Sun, 23 Feb 2020 13:39:41 +0900