The Boston Bruins return home to take on the Buffalo Sabres in Game 6 of the opening round of the Stanley Cup Playoffs on Friday night.  The Bruins are coming off a 2-1 overtime win over the Sabres in Game 5 of the series on Tuesday night. Forward David Pastrnak scored the game-winning goal to extend the series and the Bruins’ season.  “Just having the same mentality we had last game,” said Bruins head coach Marco Sturm on what he would like to see from the team. “I really enjoyed it. I enjoyed the first to the last minute. Just the way they came in. They competed. They set the tone right away. They scored. We almost didn't even care because we just had that mindset, we're going to win this game tonight. And long as they give me that feeling, I will be fine.…