[libvirt] reload libvirtd.conf has a little problem.

[Osier Yang]

hi
     When libvirtd is running,  I changed "unix_sock_ro_perms=0777" into 
""unix_sock_ro_perms=0755", and then reload the configuration with:
      kill -SIGHUP `pidof libvirtd`  or "service libvirtd reload"

      the permission of /var/lib/libvirt/libvirt-sock-ro still is 0777, 
but not 0755.

      and after "service libvirtd restart",  the permission is changed 
into 0755.

      think it's a little problem.

      libvirt version: libvirt-0.7.6-1.fc12.x86_64

Thanks and Regards
osier