When Suppress_Hddtemp_Message=true is reset to false after a login do this:
Log off from xfce. Switch to console or login with another desktop/windowmanger like OpenBox,... Then change the file, log off from OpenBox or switch back from console to the graphical login and log in to the xfce desktop, "Suppress_Hddtemp_Message=true" is now set forever.
When Suppress_ Hddtemp_ Message= true is reset to false after a login do this: windowmanger like OpenBox,... Then change the file, log off from OpenBox or switch back from console to the graphical login and log in to the xfce desktop, "Suppress_ Hddtemp_ Message= true" is now set forever.
Log off from xfce. Switch to console or login with another desktop/