@types/watch: Incorrect type for Options.ignoreDirectoryPattern

The `watch` [code](https://github.com/mikeal/watch/blob/v1.0.2/main.js#L55) and [docs](https://github.com/mikeal/watch/blame/v1.0.2/README.md#L24) indicate that the `ignoreDirectoryPattern` option is a `RegExp`, but `@types/watch` incorrectly declares it as a `boolean` in the `Options` interface.

types/watch/index.d.ts

@@ -27,7 +27,7 @@ export interface Options {
     interval?: number;
     ignoreUnreadableDir?: boolean;
     ignoreNotPermitted?: boolean;
-    ignoreDirectoryPattern?: boolean;
+    ignoreDirectoryPattern?: RegExp;
 }
 
 export function watchTree(root: string, callback: (f: FileOrFiles, curr: fs.Stats, prev: fs.Stats) => void): void;