gssmask: client_connect addrinfo leak

In client_connect() getaddrinfo() stores the head of the allocated
addrinfo structure list in 'res0'.  'res' is used to walk the list
and will be NULL at the end of the for() loop when freeaddrinfo(res)
is executed.  Pass 'res0' to freeaddrinfo() instead of 'res'.

Change-Id: Ie1358c0356b6b0f98470e46e25216cfa0ab4adac

appl/gssmask/gssmaestro.c

@@ -646,7 +646,7 @@ connect_client(const char *slave)
     }
     if (sock == rk_INVALID_SOCKET)
 	err(1, "connect to host: %s", name);
-    freeaddrinfo(res);
+    freeaddrinfo(res0);
 
     c->sock = krb5_storage_from_socket(sock);
     rk_closesocket(sock);