[FFmpeg-cvslog] vf_lut.c: fix wrong syntax in example

[Stefano Sabatini]

ffmpeg | branch: master | Stefano Sabatini <stefasab at gmail.com> | Sun Oct  2 15:21:12 2011 +0200| [2a9046c741e7a2f64d7ebbd028963b4ce0b7820c] | committer: Stefano Sabatini

vf_lut.c: fix wrong syntax in example

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2a9046c741e7a2f64d7ebbd028963b4ce0b7820c
---

 doc/filters.texi |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index bbd4e22..d5013f3 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1238,7 +1238,7 @@ lutrgb="r=negval:g=negval:b=negval"
 lutyuv="y=negval:u=negval:v=negval"
 
 # negate luminance
-lutyuv=negval
+lutyuv=y=negval
 
 # remove chroma components, turns the video into a graytone image
 lutyuv="u=128:v=128"