python-graphviz-0.8.2-bp152.3.18

- specfile:
  * update copyright year
- update to version 0.8.2:
  * Add nohtml() to support labels of the form '<...>' (disabling
    their default treatment as HTML strings).
  * Make default utf-8 encoding more visible.
  * Set encoding = locale.getpreferredencoding() when encoding
    argument/property is set to None explicitly (follow stdlib io.open
    behaviour).

- Replace imperatives in description.

- update to 0.8.1
  * please see long list of changes in
    https://github.com/xflr6/graphviz/blob/d7149d507ea6c345ac20f5d6d7e14bc3f162114c/CHANGES

- Initial singlespec version