Some previous patch introduced this bug:

/devel/v4l/patchwork/Documentation/DocBook/controls.xml:2262: parser error : attributes construct error
	      <row id=""v4l2-mpeg-video-hor-search-range">
	                ^
/devel/v4l/patchwork/Documentation/DocBook/controls.xml:2262: parser error : Couldn't find end of Start Tag row line 2262
	      <row id=""v4l2-mpeg-video-hor-search-range">
	                ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>