DOC: update RFC references
A few doc and code comment updates bumping RFC references to the new
ones.
diff --git a/src/haproxy.c b/src/haproxy.c
index 02f90a8..261b213 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -7,8 +7,8 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
- * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
- * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
+ * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
+ * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
* Working Group's web site should be consulted for protocol related changes :
*
* http://ftp.ics.uci.edu/pub/ietf/http/