avfilter/vf_scale: Reindentation

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavfilter/vf_scale.c

@@ -341,10 +341,11 @@ static av_cold void uninit(AVFilterContext *ctx)
 static int query_formats(AVFilterContext *ctx)
 {
     AVFilterFormats *formats;
+    const AVPixFmtDescriptor *desc;
     enum AVPixelFormat pix_fmt;
     int ret;
 
-        const AVPixFmtDescriptor *desc = NULL;
+    desc    = NULL;
     formats = NULL;
     while ((desc = av_pix_fmt_desc_next(desc))) {
         pix_fmt = av_pix_fmt_desc_get_id(desc);