use branch name while checking for updates

lgsm/functions/update_steamcmd.sh

@@ -166,7 +166,7 @@ fn_update_steamcmd_check(){
 
 	# Gets availablebuild info
 	cd "${steamcmddir}" || exit
-	availablebuild=$(./steamcmd.sh +login "${steamuser}" "${steampass}" +app_info_update 1 +app_info_print "${appid}" +app_info_print "${appid}" +quit | sed -n '/branch/,$p' | grep -m 1 buildid | tr -cd '[:digit:]')
+	availablebuild=$(./steamcmd.sh +login "${steamuser}" "${steampass}" +app_info_update 1 +app_info_print "${appid}" +quit | sed '1,/branches/d' | sed "1,/${branchname}/d" | grep -m 1 buildid | tr -cd '[:digit:]')
 	if [ -z "${availablebuild}" ]; then
 		fn_print_fail "Checking for update: SteamCMD"
 		sleep 0.5