Add missing include file.

git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@242 7dcaeef0-15fb-0310-b436-a5af3365683c

libssh/socket.c

@@ -24,6 +24,7 @@
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
+#include <stdio.h>
 #ifdef _WIN32
 #include <winsock2.h>
 #else