Documentation ordinal fixes.

diff --git a/dlls/winsock/socket.c b/dlls/winsock/socket.c
index d388e39..0538e79 100644
--- a/dlls/winsock/socket.c
+++ b/dlls/winsock/socket.c
@@ -1222,7 +1222,7 @@
 
 
 /**********************************************************************
- *              WSAIoctl                (WS2_32)
+ *              WSAIoctl                (WS2_32.50)
  *
  *
  *   FIXME:  Only SIO_GET_INTERFACE_LIST option implemented.