libavfilter: fix --enable-small

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 633aa01f72)

libavfilter/vf_lut.c

@@ -345,8 +345,8 @@ static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
 
 #define DEFINE_LUT_FILTER(name_, description_, init_)                   \
     AVFilter avfilter_vf_##name_ = {                                    \
-        .name          = NULL_IF_CONFIG_SMALL(#name_),                  \
-        .description   = description_,                                  \
+        .name          = #name_,                                        \
+        .description   = NULL_IF_CONFIG_SMALL(description_),            \
         .priv_size     = sizeof(LutContext),                            \
                                                                         \
         .init          = init_,                                         \