media: Documentation: userspace-api/media: v4l/vidioc-g-output: drop doubled word

Drop the doubled word "standard.".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/userspace-api/media/v4l/vidioc-g-output.rst

@@ -46,7 +46,7 @@ To select a video output applications store the number of the desired
 output in an integer and call the :ref:`VIDIOC_S_OUTPUT <VIDIOC_G_OUTPUT>` ioctl with a
 pointer to this integer. Side effects are possible. For example outputs
 may support different video standards, so the driver may implicitly
-switch the current standard. standard. Because of these possible side
+switch the current standard. Because of these possible side
 effects applications must select an output before querying or
 negotiating any other parameters.