[4.0] c84d1f8 Reduce fetch_chunksize to 16k as agreed on VDD14Q4.

[Lasse Karstensen]

commit c84d1f886671fd98317890b5a41bd60f0837206f
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Fri Nov 28 14:20:39 2014 +0000

    Reduce fetch_chunksize to 16k as agreed on VDD14Q4.

diff --git a/bin/varnishd/mgt/mgt_param_tbl.c b/bin/varnishd/mgt/mgt_param_tbl.c
index 7be8bc6..345a94a 100644
--- a/bin/varnishd/mgt/mgt_param_tbl.c
+++ b/bin/varnishd/mgt/mgt_param_tbl.c
@@ -242,7 +242,7 @@ struct parspec mgt_parspec[] = {
 		"Internal limits in the storage_file module makes increases "
 		"above 128kb a dubious idea.",
 		EXPERIMENTAL,
-		"128k", "bytes" },
+		"16k", "bytes" },
 	{ "fetch_maxchunksize",
 		tweak_bytes, &mgt_param.fetch_maxchunksize,
 		"65536", NULL,