Attempt to fix a null byte warning when getting pi version.

.includes/eeprom.sh

@@ -8,7 +8,7 @@
 updateEeprom() {
     # Detect Pi version from device tree
     local piModel
-    piModel=$(cat /sys/firmware/devicetree/base/model 2>/dev/null)
+    piModel=$(LC_ALL=C tr -d '\000' < /sys/firmware/devicetree/base/model 2>/dev/null)
 
     # Determine which EEPROM package is needed
     local eepromPackage=""