* uinfo.cc (pwdgrp::fetch_account_from_windows): Allow fetching of
	NT SERVICE accounts by name.  Always prepend domain to NT SERVICE
	accounts.  Add U-domain\username string to pw_gecos for predefined
	builtin accounts as well.
	* uinfo.cc (pwdgrp::fetch_account_from_windows): Allow fetching of
	NT SERVICE accounts by name.  Always prepend domain to NT SERVICE
	accounts.  Add U-domain\username string to pw_gecos for predefined
	builtin accounts as well.