Merge pull request #3665 from scboucher/fix_Pi-hole_temp_unit_default_value

Change default value of temp_unit to 'C'

advanced/Scripts/chronometer.sh

@@ -236,7 +236,7 @@ get_sys_stats() {
 
         sys_name=$(hostname)
 
-        [[ -n "$TEMPERATUREUNIT" ]] && temp_unit="$TEMPERATUREUNIT" || temp_unit="c"
+        [[ -n "$TEMPERATUREUNIT" ]] && temp_unit="${TEMPERATUREUNIT^^}" || temp_unit="C"
 
         # Get storage stats for partition mounted on /
         read -r -a disk_raw <<< "$(df -B1 / 2> /dev/null | awk 'END{ print $3,$2,$5 }')"