lavf: flush the output AVIOContext in av_write_trailer().

This is consistent with stdio and is what we want to do in all cases.

Fixes a bug in the voc muxer which didn't flush in write_trailer()
previously. This is the cause of the change in the test results.

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/gif.c b/libavformat/gif.c
index bfe63f3617..f11b267033 100644
--- a/libavformat/gif.c
+++ b/libavformat/gif.c
@@ -347,7 +347,7 @@ static int gif_write_trailer(AVFormatContext *s)
     AVIOContext *pb = s->pb;
 
     avio_w8(pb, 0x3b);
-    avio_flush(s->pb);
+
     return 0;
 }