Mem efficiency, make full use of client struct memory for reply buffers (#8968)

When we allocate a client struct with 16k reply buffer, the allocator we may give us 20K,
This commit makes use of that extra space.
Additionally, it tries to store whatever it can from the reply into the static 'buf' before
allocating a new node for the reply list.

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index e4d64d58f..eecb61daa 100644
--- a/README.md
+++ b/README.md
@@ -304,8 +304,8 @@ struct client {
     redisDb *db;
     int flags;
     list *reply;
-    char buf[PROTO_REPLY_CHUNK_BYTES];
     // ... many other fields ...
+    char buf[PROTO_REPLY_CHUNK_BYTES];
 }
 ```
 The client structure defines a *connected client*: