store-ssl-files: fix when CA bundle has multiple certs
store-ssl-files: fix when CA bundle has multiple certs

Add the new line (\n) after each certificate (previously was mixing 'begin'
and 'end' lines when reading the next certificates, and was making the setup
to fail).

devpanel/serverlink,devpanel/serverlink,devpanel/serverlink,devpanel/serverlink,devpanel/serverlink