[arch-general] /var/run should not be contained in the package file list.

[郑文辉(Techlive Zheng)]

Due to /var/run now is a tmp filesystem, so the path /var/run/* should
not be packaged anymore. Instead, rc.script should take care aware
create needed /var/run stuff. Otherwise, there are a missing wraning
while running "pacman -Qk".