Drop the doubled word "of".
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: cgroups@vger.kernel.org
Link: https://lore.kernel.org/r/20200704032020.21923-2-rdunlap@infradead.orgSigned-off-by: NJonathan Corbet <corbet@lwn.net>