Fix checkstyle warning

Resolve a missed checkstyle warning.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Mateusz Guzik <mjguzik@gmail.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #14799

module/os/freebsd/zfs/zfs_ctldir.c

@@ -686,7 +686,7 @@ zfsctl_root_readdir(struct vop_readdir_args *ap)
 	 * The check below facilitates the idiom of repeating calls until the
 	 * count to return is 0.
 	 */
-	if (zfs_uio_offset(&uio) == 3 * sizeof(entry)) {
+	if (zfs_uio_offset(&uio) == 3 * sizeof (entry)) {
 		return (0);
 	}