Handle list arguments better in get_custom_mounts().

scripts/live

@@ -1223,7 +1223,7 @@ setup_unionfs ()
 		rm -rf ${custom_mounts} 2> /dev/null
 
 		# Gather information about custom mounts from devies detected as overlays
-		get_custom_mounts ${overlay_devices} ${custom_mounts}
+		get_custom_mounts ${custom_mounts} ${overlay_devices}
 
 		[ -n "${DEBUG}" ] && cp ${custom_mounts} "${rootmnt}/live/persistent"
 

scripts/live-helpers

@@ -1228,8 +1228,9 @@ get_custom_mounts ()
 	# Side-effect: leaves $devices with live.persist mounted in ${rootmnt}/live/persistent
 	# Side-effect: prints info to file $custom_mounts
 
-	local devices="${1}"
-	local custom_mounts="${2}" # print result to this file
+	local custom_mounts=${1}
+	shift
+	local devices=${@}
 
 	local bindings="/tmp/bindings.list"
 	local links="/tmp/links.list"