(krb5_copy_encrypted): check that fds are not too large to select on
(krb5_copy_encrypted): check that fds are not too large to select on


git-svn-id: 193148810cf65385f3a195dbc9a8b504846da3a2@9099 ec53bebd-3082-4978-b11e-865c3cabbd6b

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal