Merge commit '75b90ef7'

* commit '75b90ef7':
  libavformat: Update the comment about AVOutputFormat flags
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

libavformat/avformat.h

@@ -527,7 +527,7 @@ typedef struct AVOutputFormat {
      * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER,
      * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS,
      * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH,
-     * AVFMT_TS_NONSTRICT
+     * AVFMT_TS_NONSTRICT, AVFMT_TS_NEGATIVE
      */
     int flags;