http://msdn.microsoft.com/en-us/library/cc248871(PROT.10).aspx
	http://msdn.microsoft.com/en-us/library/bb736370(VS.85).aspx
	* wtsapi32.h (USERNAME_LENGTH): Define as 20.
	(CLIENTNAME_LENGTH): Define as 20.
	(CLIENTADDRESS_LENGTH): Define as 30.
	(WINSTATIONNAME_LENGTH): Define as 32.
	(DOMAIN_LENGTH): Define as 17.
	(WTSINFOA, WTSINFOW): Fix the WinStationName, Domain and UserName
	members to be arrays.


git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@3487 4407c894-4637-0410-b4f5-ada5f102cad1