gss-client.c (main): Set display_file to be stdout

gss-client.c (main): Set display_file to be stdout

gss-server.c (main): Set display_file to 0 if using inetd; otherwise,
	set it to be stdout.

gss-misc.c (send_token, recv_token, display_status): If display_file
	is null, don't set it to stderr; just don't print the log message
	instead.  Needed for inetd operation.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@6892 dc483132-0cff-0310-8789-dd5450dbe970