Supported bug

src/main.js

@@ -182,10 +182,11 @@ vorpal
   )
   .action(async function (args, callback) {
     const opts = {
-      firstLevelOnly: args.options.firstLevelOnly || !Boolean(args.options.all),
-      returnCommands: args.options.returnCommands || args.options.all,
-      returnEvents: args.options.returnEvents || args.options.all,
-      returnParams: args.options.returnParams || args.options.all,
+      firstLevelOnly:
+        args.options.firstLevelOnly || !Boolean(args.options.all) || false,
+      returnCommands: args.options.returnCommands || args.options.all || false,
+      returnEvents: args.options.returnEvents || args.options.all || false,
+      returnParams: args.options.returnParams || args.options.all || false,
     };
 
     try {