Set pidfile variable to make use of built-in status function
Fix bashism
* Please fix the ebuild to use correct FHS/Gentoo policy paths.
* QA Notice: shell script appears to use non-POSIX feature(s):
* possible bashism in etc/init.d/thinkfan line 22 ('$(< foo)' should be '$(cat foo)'):
* PID=$(</var/run/thinkfan.pid)
Use default start/stop method
Set pidfile variable to make use of built-in status function
Fix bashism