Fork writes to background

Signed-off-by: Tyler Nijmeh <tylernij@gmail.com>

system/bin/ktweak

@@ -20,7 +20,7 @@ dbg() {
 }
 
 # Safely write value to file
-write() {
+_write() {
 	# Bail out if file does not exist
 	if [[ ! -f "$1" ]]
 	then
@@ -51,6 +51,11 @@ write() {
 	dbg "Wrote $1: $curval --> $2"
 }
 
+# Background fork write function
+write() {
+	_write $@ &
+}
+
 usage() {
 	echo -n "Usage: `basename $0` [OPTIONS]
 Options: