cifs: send IPv6 addr in upcall with colon delimiters

Make it easier on the upcall program by adding ':' delimiters between
each group of hex digits.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

fs/cifs/cifs_spnego.c

@@ -125,7 +125,7 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
 	if (server->addr.sockAddr.sin_family == AF_INET)
 		sprintf(dp, "ip4=%pI4", &server->addr.sockAddr.sin_addr);
 	else if (server->addr.sockAddr.sin_family == AF_INET6)
-		sprintf(dp, "ip6=%pi6", &server->addr.sockAddr6.sin6_addr);
+		sprintf(dp, "ip6=%pI6", &server->addr.sockAddr6.sin6_addr);
 	else
 		goto out;