libvo-amrwbenc: switch to ff_alloc_packet2().

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/libvo-amrwbenc.c

@@ -117,8 +117,7 @@ static int amr_wb_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
     const int16_t *samples = (const int16_t *)frame->data[0];
     int size, ret;
 
-    if ((ret = ff_alloc_packet(avpkt, MAX_PACKET_SIZE))) {
-        av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+    if ((ret = ff_alloc_packet2(avctx, avpkt, MAX_PACKET_SIZE))) {
         return ret;
     }