[th/fix-detect-version]
the detection of the openvpn version no longer worked since 2.5.0.
e.g. see https://bugzilla.redhat.com/show_bug.cgi?id=1968573
the detection of the openvpn version no longer worked since 2.5.0.
e.g. see https://bugzilla.redhat.com/show_bug.cgi?id=1968573