doc: edit filehandle.close() entry in fs.md

PR-URL: #34782
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Harshitha K P <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>

Author: Trott

doc/api/fs.md

@@ -4548,8 +4548,8 @@ added: v10.0.0
   file descriptor is closed, or will be rejected if an error occurs while
   closing.
 
-Closes the file handle. Will wait for any pending operation on the handle
-to complete before completing.
+Closes the file handle after waiting for any pending operation on the handle to
+complete.
 
 ```js
 const fsPromises = require('fs').promises;