sh.zio.backup: fix weirdness with non-stderr messages

usr/local/bin/sh.zio.backup

@@ -157,7 +157,7 @@ function invoke_script() {
 function trigger_notify() {
 	level="$1"
 	title="$2"
-	message="$(echo "$3" | sed -r "s/\x1B\[[0-9;]*[JKmsu]//g")"
+	message="$3"
 	log_path="$4"
 	notify_prog="/usr/local/bin/sh.zio.notify"
 
@@ -185,6 +185,8 @@ function trigger_notify() {
 				--message "$message" \
 				--title "$title"
 		else
+			message="$(echo "$3" | sed -r "s/\x1B\[[0-9;]*[JKmsu]//g")"
+
 			"$notify_prog" \
 				--file "$log_path" \
 				--invoked-by "$(basename $me_filename)" \