Currently, 'Regen pem' handler does not ensure that newline is added between certificates when combining multiple files together. It may be a problem, especially for hashi_vault pki backend which doesn't add newline at the end of certificate file. Change-Id: Ic703e74532874e0912e21244153fb8c31cfebe31 Signed-off-by: Damian Dabrowski <damian.dabrowski@cleura.com>