[modules/sensors] do not truncate temperature

use strip() instead of a sub-list to get the value for the temperature.

fixes #787

bumblebee_status/modules/contrib/sensors.py

@@ -98,7 +98,7 @@ def get_temp(self):
             try:
                 temperature = open(
                     self.parameter("path", "/sys/class/thermal/thermal_zone0/temp")
-                ).read()[:2]
+                ).read().strip()
                 log.debug("retrieved temperature from /sys/class/")
                 # TODO: Iterate through all thermal zones to determine the correct one and use its value
                 # https://unix.stackexchange.com/questions/304845/discrepancy-between-number-of-cores-and-thermal-zones-in-sys-class-thermal