fixup! fs: make open and close stream override optional when unused

Co-authored-by: mscdex <mscdex@users.noreply.github.com>

doc/api/fs.md

@@ -2013,7 +2013,7 @@ destroyed, like most `Readable` streams.  Set the `emitClose` option to
 By providing the `fs` option, it is possible to override the corresponding `fs`
 implementations for `open`, `read`, and `close`. When providing the `fs` option,
 an override for `read` is required. If no `fd` is provided, an override for
-`open` is also requried. If `autoClose` is `true`, an override for `close` is
+`open` is also required. If `autoClose` is `true`, an override for `close` is
 also required.
 
 ```mjs