Revert default page spill from 8 to 4 packets.


svn path=/trunk/ogg/; revision=17579
diff --git a/src/framing.c b/src/framing.c
index 16d37c7..c5cb760 100644
--- a/src/framing.c
+++ b/src/framing.c
@@ -407,7 +407,7 @@
     int packets_done=0;
     int packet_just_done=0;
     for(vals=0;vals<maxvals;vals++){
-      if(acc>nfill && packet_just_done>=8){
+      if(acc>nfill && packet_just_done>=4){
         force=1;
         break;
       }