diff --git a/battstat b/battstat
index 4aaa3ad..babf37a 100755
--- a/battstat
+++ b/battstat
@@ -1,213 +1,213 @@
 #!/usr/bin/env sh
 
-charging_icon="⚡"     #  U+26A1 - Thunderbolt
+charging_icon="⚡"    #  U+26A1 - Thunderbolt
 discharging_icon="🔋" # U+1F50B - Battery
 
 print_help() {
-    echo "usage: battstat [options] format"
-    echo ""
-    echo "options:"
-    echo "    -h, --help                display help information"
-    echo "    -c, --charging-icon       string to display in icon's place when battery is charging"
-    echo "    -d, --discharging-icon    string to display in icon's place when battery is discharging"
-    echo "    --percent-when-charged    only display percent when charged"
-    echo ""
-    echo "format:"
-    echo "    {i}    display icon"
-    echo "    {t}    display time remaining"
-    echo "    {p}    display percent"
-    echo ""
-    echo "    Note: There must be a space between each format token."
+	echo "usage: battstat [options] format"
+	echo ""
+	echo "options:"
+	echo "    -h, --help                display help information"
+	echo "    -c, --charging-icon       string to display in icon's place when battery is charging"
+	echo "    -d, --discharging-icon    string to display in icon's place when battery is discharging"
+	echo "    --percent-when-charged    only display percent when charged"
+	echo ""
+	echo "format:"
+	echo "    {i}    display icon"
+	echo "    {t}    display time remaining"
+	echo "    {p}    display percent"
+	echo ""
+	echo "    Note: There must be a space between each format token."
 }
 
 exit_no_battery() {
-    echo "battstat: no battery found"
-    exit 1
+	echo "battstat: no battery found"
+	exit 1
 }
 
 get_darwin_details() {
-    battery_details=$(pmset -g batt)
-
-    # Exit if no battery exists.
-    if ! echo "$battery_details" | grep -q InternalBattery; then
-	exit_no_battery
-    fi
-    
-    charged=$(echo "$battery_details" | grep -w 'charged')
-    charging=$(echo "$battery_details" | grep -w 'AC Power')
-    discharging=$(echo "$battery_details" | grep -w 'Battery Power')
-    time=$(echo "$battery_details" | grep -Eo '([0-9][0-9]|[0-9]):[0-5][0-9]')
-    percent=$(echo "$battery_details" | grep -o "[0-9]*"%)
+	battery_details=$(pmset -g batt)
+
+	# Exit if no battery exists.
+	if ! echo "$battery_details" | grep -q InternalBattery; then
+		exit_no_battery
+	fi
+
+	charged=$(echo "$battery_details" | grep -w 'charged')
+	charging=$(echo "$battery_details" | grep -w 'AC Power')
+	discharging=$(echo "$battery_details" | grep -w 'Battery Power')
+	time=$(echo "$battery_details" | grep -Eo '([0-9][0-9]|[0-9]):[0-5][0-9]')
+	percent=$(echo "$battery_details" | grep -o "[0-9]*"%)
 }
 
 get_linux_details() {
-    battery_details=$(LC_ALL=en_US.UTF-8 upower -i $(upower -e | grep 'BAT'))
-    
-    # Exit if no batery exists.
-    if [ -z "$battery_details" ]; then
-	exit_no_battery
-    fi
-    
-    charged=$(echo "$battery_details" | grep 'state' | grep -w 'fully-charged')
-    charging=$(echo "$battery_details" | grep 'state' | grep -w 'charging')
-    discharging=$(echo "$battery_details" | grep 'state' | grep -w 'discharging')
-    percent=$(echo "$battery_details"| grep 'percentage' | awk '{print $2}')
-    
-    case $(echo "$battery_details" | grep 'time' | awk '{print $5}') in
+	battery_details=$(LC_ALL=en_US.UTF-8 upower -i $(upower -e | grep 'BAT'))
+
+	# Exit if no batery exists.
+	if [ -z "$battery_details" ]; then
+		exit_no_battery
+	fi
+
+	charged=$(echo "$battery_details" | grep 'state' | grep -w 'fully-charged')
+	charging=$(echo "$battery_details" | grep 'state' | grep -w 'charging')
+	discharging=$(echo "$battery_details" | grep 'state' | grep -w 'discharging')
+	percent=$(echo "$battery_details" | grep 'percentage' | awk '{print $2}')
+
+	case $(echo "$battery_details" | grep 'time' | awk '{print $5}') in
 	"hours")
-	    hours=$(echo "$battery_details" | grep 'time' | awk '{print $4}' | cut -d . -f1)
-	    minutes=$(echo "$battery_details" | grep 'time' | awk '{print $4}' | cut -d . -f2)
-	    minutes=$(echo .$minutes \* 60 | bc -l | cut -d. -f1)
-	    ;;
+		hours=$(echo "$battery_details" | grep 'time' | awk '{print $4}' | cut -d . -f1)
+		minutes=$(echo "$battery_details" | grep 'time' | awk '{print $4}' | cut -d . -f2)
+		minutes=$(echo .$minutes \* 60 | bc -l | cut -d. -f1)
+		;;
 	"minutes")
-	    minutes=$(echo "$battery_details" | grep 'time' | awk '{print $4}' | cut -d . -f1)
-	    ;;
-    esac
-
-    # Diplay 0 in the hours spot when only minutes remain.
-    if [ -z "$hours" ]; then
-	hours="0"
-    fi
-
-    # Prefix 0 when minutes drop below 10.
-    if [ ${#minutes} -eq '1' ]; then
-	minutes="0$minutes"
-    fi
-    
-    time=$hours:$minutes
+		minutes=$(echo "$battery_details" | grep 'time' | awk '{print $4}' | cut -d . -f1)
+		;;
+	esac
+
+	# Diplay 0 in the hours spot when only minutes remain.
+	if [ -z "$hours" ]; then
+		hours="0"
+	fi
+
+	# Prefix 0 when minutes drop below 10.
+	if [ ${#minutes} -eq '1' ]; then
+		minutes="0$minutes"
+	fi
+
+	time=$hours:$minutes
 }
 
 get_openbsd_details() {
-    battery_details=$(apm)
-
-    # Exit if no battery exists.
-    if [ -z "$battery_details" ]; then
-	exit_no_battery
-    fi
-
-    charging=$(echo $battery_details | grep -w 'state: connected')
-    discharging=$(echo $battery_details | grep -w 'state: not connected')
-    percent=$(echo $battery_details | grep -o '[0-9]*%')
-    full_minutes=$(echo $battery_details | grep -o ' [0-9]* ')
-
-    # Battery is considered charged when AC is connected and 100%
-    if [ ! -z "$charging" ] && [ $percent = "100%" ]; then
-        charged="charged"
-    fi
-   
-    # Only compute time when available
-    if [ ! -z "$full_minutes" ]; then
-        hours=$(($full_minutes/60))
-        minutes=$(($full_minutes%60))
-
-        # Prefix 0 when minutes drop below 10.
-        if [ ${#minutes} -eq '1' ]; then
-	    minutes="0$minutes"
-        fi
-        
-        time=$hours:$minutes
-    fi
+	battery_details=$(apm)
+
+	# Exit if no battery exists.
+	if [ -z "$battery_details" ]; then
+		exit_no_battery
+	fi
+
+	charging=$(echo $battery_details | grep -w 'state: connected')
+	discharging=$(echo $battery_details | grep -w 'state: not connected')
+	percent=$(echo $battery_details | grep -o '[0-9]*%')
+	full_minutes=$(echo $battery_details | grep -o ' [0-9]* ')
+
+	# Battery is considered charged when AC is connected and 100%
+	if [ ! -z "$charging" ] && [ $percent = "100%" ]; then
+		charged="charged"
+	fi
+
+	# Only compute time when available
+	if [ ! -z "$full_minutes" ]; then
+		hours=$(($full_minutes / 60))
+		minutes=$(($full_minutes % 60))
+
+		# Prefix 0 when minutes drop below 10.
+		if [ ${#minutes} -eq '1' ]; then
+			minutes="0$minutes"
+		fi
+
+		time=$hours:$minutes
+	fi
 }
 
 hide_percent_until_charged() {
-    if [ -z "$charged" ]; then
-	percent=""
-    fi
-}   
+	if [ -z "$charged" ]; then
+		percent=""
+	fi
+}
 
 print_icon() {
-    if [ ! -z "$charging" ] || [ ! -z "$charged" ]; then
-	icon=$charging_icon
-    elif [ ! -z "$discharging" ]; then
-	icon=$discharging_icon
-    fi
+	if [ ! -z "$charging" ] || [ ! -z "$charged" ]; then
+		icon=$charging_icon
+	elif [ ! -z "$discharging" ]; then
+		icon=$discharging_icon
+	fi
 
-    printf " %s " $icon
+	printf " %s " $icon
 }
 
 print_time() {
-    # Display "calc..." when calculating time remaining.
-    if [ -z "$time" ] || [ $time = "0:00" ]; then
-	time="calc..."
-    fi
-
-    # Hide time when fully charged.
-    if [ ! -z "$charged" ]; then
-	time=""
-    fi
-    
-    if [ ! -z "$time" ]; then
-	printf " %s " $time
-    fi
+	# Display "calc..." when calculating time remaining.
+	if [ -z "$time" ] || [ $time = "0:00" ]; then
+		time="calc..."
+	fi
+
+	# Hide time when fully charged.
+	if [ ! -z "$charged" ]; then
+		time=""
+	fi
+
+	if [ ! -z "$time" ]; then
+		printf " %s " $time
+	fi
 
 }
 
 print_percent() {
-    if [ ! -z "$percent" ]; then
-	printf " %s " $percent
-    fi
+	if [ ! -z "$percent" ]; then
+		printf " %s " $percent
+	fi
 }
 
 if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
-    print_help
-    exit 0
+	print_help
+	exit 0
 fi
 
 case $(uname) in
-    "Darwin")
+"Darwin")
 	get_darwin_details
 	;;
-    "Linux")
+"Linux")
 	get_linux_details
 	;;
-    "OpenBSD")
+"OpenBSD")
 	get_openbsd_details
 	;;
-    *)
+*)
 	echo "battstat: operating system not supported"
 	exit 1
 	;;
 esac
 
 if [ $# -eq 0 ]; then
-    print_time
-    print_percent
-    print_icon
+	print_time
+	print_percent
+	print_icon
 fi
 
 while test $# -gt 0; do
-    case "$1" in
+	case "$1" in
 	--percent-when-charged)
-	    hide_percent_until_charged
-	    shift
-	    ;;
-	-c|--charging-icon)
-	    charging_icon="$2"
-	    shift
-	    shift
-	    ;;
-	-d|--discharging-icon)
-	    discharging_icon="$2"
-	    shift
-	    shift
-	    ;;
+		hide_percent_until_charged
+		shift
+		;;
+	-c | --charging-icon)
+		charging_icon="$2"
+		shift
+		shift
+		;;
+	-d | --discharging-icon)
+		discharging_icon="$2"
+		shift
+		shift
+		;;
 	{i})
-	    print_icon
-	    shift
-	    ;;
+		print_icon
+		shift
+		;;
 	{t})
-	    print_time
-	    shift
-	    ;;
+		print_time
+		shift
+		;;
 	{p})
-	    print_percent
-	    shift
-	    ;;
+		print_percent
+		shift
+		;;
 	*)
-	    print_help
-	    break
-	    ;;
-    esac
+		print_help
+		break
+		;;
+	esac
 done
 
 printf "\n"