ug2html: set correct interpreter, fix doc
-#!/usr/bin/env python3
+#!/usr/bin/env python3.6
"""ug2html.py -- Creates HTML version of Robot Framework User Guide
@@ -17,8 +17,7 @@ dist .... Creates the user guide under 'robotframework-userguide-<version>'
zip ..... Uses 'dist' to create a stand-alone distribution and then packages
it into 'robotframework-userguide-<version>.zip'
-Version number to use is got automatically from 'src/robot/version.py' file
-created by 'package.py'.
+Version number to use is got automatically from 'src/robot/version.py' file.
"""
import os
