Several fixes, patched dwmblocks so it shows spaces around the bar

dwmblocks_scripts/dwm_battery

@@ -1,7 +1,13 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-prct=$(acpi | grep 'Discharging' | awk '{print $4}' | sed 's/,//')
-batid=$(acpi | grep 'Discharging' | awk '{print $2}' | sed 's/://')
+prct=$(acpi 2>/dev/null | grep 'Discharging' | awk '{print $4}' | sed 's/,//')
+batid=$(acpi 2>/dev/null | grep 'Discharging' | awk '{print $2}' | sed 's/://')
+
+# If not supported
+if [[ $(acpi 2>&1 | grep 'No support') ]]; then
+	echo "No battery" >&2;
+	exit 1
+fi
 
 # If charged
 if [[ $(acpi | grep 'Discharging' | wc -c) -eq $(acpi | grep 'Charging' | wc -c) ]]; then