Forwarded bug from Debian
Sometimes my /var partition fills up when I don't run apt-get autoclean
often enough. When it is full and I play lbreakout2, the lbreakout2.hscr
file in /var/games gets truncated to 0 length.
Rather than overwriting the highscore file, I think it should move it out of
the way, right the new one, then delete the old one. If writing the new
one fails, it could move the current one back.