mpeg4videodec: Fix low_delay error message

Signed-off-by: Diego Biurrun <diego@biurrun.de>

libavcodec/mpeg4videodec.c

@@ -2081,7 +2081,7 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
     s->pict_type = get_bits(gb, 2) + AV_PICTURE_TYPE_I;        /* pict type: I = 0 , P = 1 */
     if (s->pict_type == AV_PICTURE_TYPE_B && s->low_delay &&
         ctx->vol_control_parameters == 0 && !(s->flags & CODEC_FLAG_LOW_DELAY)) {
-        av_log(s->avctx, AV_LOG_ERROR, "low_delay flag incorrectly, clearing it\n");
+        av_log(s->avctx, AV_LOG_ERROR, "low_delay flag set incorrectly, clearing it\n");
         s->low_delay = 0;
     }