error log: osmo_sock_init2_multiaddr() v4/v6 mix

Provide some more information for the error case when local and remote
addresses mix v4 and v6.

Change-Id: I0fd12b08e0788ce3af6dc519ff8c82ad196a115f
diff --git a/tests/socket/socket_sctp_test.err b/tests/socket/socket_sctp_test.err
index 996d092..7583a2a 100644
--- a/tests/socket/socket_sctp_test.err
+++ b/tests/socket/socket_sctp_test.err
@@ -1,8 +1,8 @@
 invalid: you have to specify either BIND or CONNECT flags
-Invalid v4 vs v6 in local vs remote addresses
-Invalid v4 vs v6 in local vs remote addresses
+Invalid v4 vs v6 in local vs remote addresses: local: v4 remote: v6
+Invalid v4 vs v6 in local vs remote addresses: local: v6 remote: v4
 invalid: you have to specify either BIND or CONNECT flags
-Invalid v4 vs v6 in local vs remote addresses
-Invalid v4 vs v6 in local vs remote addresses
+Invalid v4 vs v6 in local vs remote addresses: local: v4 remote: v6
+Invalid v4 vs v6 in local vs remote addresses: local: v6 remote: v4
 getaddrinfo(::1, 0) failed: Address family for hostname not supported
 getaddrinfo(127.0.0.1, 0) failed: Address family for hostname not supported