Fix the deciKelvin to Celsius conversion on FreeBSD (#195)
Fix the deciKelvin to Celsius conversion on FreeBSD (#195)

Change from ceiled value to floored value to be consistent with the
FreeBSD kernel

https://svnweb.freebsd.org/base?view=revision&revision=300421
peder2tm/i3status-netdev,Dettorer/i3status,ixjlyons/i3status,Gravemind/i3status,ixjlyons/i3status,lexszero/i3status,peder2tm/i3status-netdev,ixjlyons/i3status,lexszero/i3status,flammi/i3status,Gravemind/i3status,ixjlyons/i3status,i3/i3status,Dettorer/i3status,lexszero/i3status,jasperla/i3status,flammi/i3status,Gravemind/i3status,jasperla/i3status,jasperla/i3status,Gravemind/i3status,i3/i3status,i3/i3status,Dettorer/i3status,flammi/i3status,jasperla/i3status,peder2tm/i3status-netdev,Dettorer/i3status,lexszero/i3status,i3/i3status,flammi/i3status,peder2tm/i3status-netdev