DOC: config: fix aliases for protocol prefixes "udp4@" and "udp6@"

It was mentioned that they are equivalent to "stream+ipv*@" while it's
the equivalent of "dgram+ipv*@".

(cherry picked from commit 24101f9ce7636e88b642aa0918d8ad55520dfda4)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit d971ef3cdeeed2f24d6ef2f2cb1e60010837be07)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit c1b5f613733450389de682db536fb2d9af19f86c)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit bada96ae92946227529d92aeb7a8ee969b6947f1)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 1e23305..04acab7 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -22248,14 +22248,14 @@
                                  method is forced to "datagram". Depending on
                                  the statement using this address, a port or
                                  port range can or must be specified.
-                                 It is considered as an alias of 'stream+ipv4@'.
+                                 It is considered as an alias of 'dgram+ipv4@'.
 
 'udp6@<address>[:port1[-port2]]' following <address> is always considered as
                                  an IPv6 address but socket type and transport
                                  method is forced to "datagram". Depending on
                                  the statement using this address, a port or
                                  port range can or must be specified.
-                                 It is considered as an alias of 'stream+ipv4@'.
+                                 It is considered as an alias of 'dgram+ipv4@'.
 
 'uxdg@<path>'    following string is considered as a unix socket <path> but
                  transport method is forced to "datagram". It is considered as