swaybar: Only charging and discharging symbols

.config/sway/swaybar.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+# vim: ts=4
 
 function getPowerValue() {
 	POWER=$(cat /sys/class/power_supply/BAT0/capacity)%
@@ -9,7 +10,7 @@ function getPowerStatus() {
 	POWERSTATUS=$(cat /sys/class/power_supply/BAT0/status)
 	if [ "$POWERSTATUS" == "Charging" ]; then
 		echo "+"
-	else
+    elif [ "$POWERSTATUS" == "Discharging" ]; then
 		echo "-"
 	fi
 }