Show "Saving" message only when DEBUG=2

This is logical because we're increasing verbosity by setting the value
to 2. At 1, the debug is on but the user is not interrupted by the
status line messages.

scripts/continuum_save.sh

@@ -51,7 +51,7 @@ enough_time_since_last_run_passed() {
 fetch_and_run_tmux_resurrect_save_script() {
 	local resurrect_save_script_path="$(get_tmux_option "$resurrect_save_path_option" "")"
 	if [ -n "$resurrect_save_script_path" ]; then
-    if [ "$DEBUG" == "1" ]; then
+    if [ "$DEBUG" == "2" ]; then
       local log_path=$(get_log_path)
       log_message "Calling $resurrect_save_script_path"
 		  "$resurrect_save_script_path" >> $log_path 2>&1 &