test-require-arg compatibility

Author: Dracape

conf.d/done.fish

@@ -225,7 +225,7 @@ if set -q __done_enabled
         # backwards compatibility for fish < v3.0
         set -q cmd_duration; or set -l cmd_duration $CMD_DURATION
 
-        if test $cmd_duration
+        if test -n $cmd_duration
             and test $cmd_duration -gt $__done_min_cmd_duration # longer than notify_duration
             and not __done_is_process_window_focused # process pane or window not focused