(get_krb4_cc_name): move out from _krb5_krb_tf_setup (_krb5_krb_tf_setup): adapt to allocated filename instead of static filename git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12958 ec53bebd-3082-4978-b11e-865c3cabbd6b