feat: Autoping availability warning

src/command/cmd_funcs.c

@@ -6374,6 +6374,8 @@ cmd_autoping(ProfWin* window, const char* const command, gchar** args)
             cons_bad_cmd_usage(command);
         }
 
+    } else if (g_strcmp0(cmd, "warning") == 0) {
+        _cmd_set_boolean_preference(value, "Autoping availability warning", PREF_AUTOPING_WARNING);
     } else {
         cons_bad_cmd_usage(command);
     }