fix rc shortcut

src/modules/compat.ts

@@ -21,7 +21,7 @@ export class CompatModule extends BaseModule {
       const matching = expr.match(rcRegexp);
       return session.execute({
         name: 'rc',
-        args: [matching[1], ...(matching[2] ? [matching[2].trim()] : [])],
+        args: [matching[2]?.trim() || '检定', matching[1]],
       });
     }
     return next();