gifenc: switch to ff_alloc_packet2()

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

libavcodec/gif.c

@@ -164,8 +164,7 @@ static int gif_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     uint8_t *outbuf_ptr, *end;
     int ret;
 
-    if ((ret = ff_alloc_packet(pkt, avctx->width*avctx->height*7/5 + FF_MIN_BUFFER_SIZE)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+    if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*7/5 + FF_MIN_BUFFER_SIZE)) < 0) {
         return ret;
     }
     outbuf_ptr = pkt->data;