In the gss rpc package, replace the type used for a

In the gss rpc package, replace the type used for a
socket on Windows with SOCKET (instead of int) and
replace all calls to close() that are used to close
sockets with closesocket().

src/include/port-sockets.h includes the definitions
of SOCKET and closesocket() for non-Windows systems.

ticket: 6041
tags: pullup

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@20578 dc483132-0cff-0310-8789-dd5450dbe970