Add non-persistent user-supplied option support for subcommands

...by adding missing parameter in the _parseCommand() call in
_dispatchSubcommand().

lib/command.js

@@ -1114,7 +1114,7 @@ Use .parseAsync() instead.`);
       if (subCommand._executableHandler) {
         this._executeSubCommand(subCommand, operands.concat(unknown));
       } else {
-        return subCommand._parseCommand(operands, unknown);
+        return subCommand._parseCommand(operands, unknown, this._asyncParsing);
       }
     });
     return hookResult;