In init_ssl, open the correct CRL path pre-chroot

In init_ssl, open the correct CRL path pre-chroot

When using the chroot option, the init_ssl function can be called before
entering the chroot or, when OpenVPN receives a SIGHUP, afterwards. This
commit ensures that OpenVPN tries to open the correct path for the CRL
file in either situation.

This commit does not address key and certificate files. For these, the
--persist-key option should be used.

Signed-off-by: Max Fillinger <maximilian.fillinger@foxcrypto.com>
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Message-Id: <20210415091248.18149-1-maximilian.fillinger@foxcrypto.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg22117.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>