rpcrt4: Set the AI_PASSIVE flag to getaddrinfo in rpcrt4_ip_tcp_open so that the bound-to port is connectable from other machines.

dlls/rpcrt4/rpc_transport.c

diff --git a/dlls/rpcrt4/rpc_transport.c b/dlls/rpcrt4/rpc_transport.c
index 19da6a5..a264b9b 100644
--- a/dlls/rpcrt4/rpc_transport.c
+++ b/dlls/rpcrt4/rpc_transport.c
@@ -584,7 +584,7 @@
   if (tcpc->sock != -1)
     return RPC_S_OK;
 
-  hints.ai_flags          = 0;
+  hints.ai_flags          = Connection->server ? AI_PASSIVE : 0;
   hints.ai_family         = PF_UNSPEC;
   hints.ai_socktype       = SOCK_STREAM;
   hints.ai_protocol       = IPPROTO_TCP;