27a8cada79
This causes OpenVPN services to reach the "active" state when the VPN connection is up (i.e., after OpenVPN prints "Initialization Sequence Completed"). This allows units to be ordered correctly after openvpn-* units, and makes systemctl present a password prompt: $ start openvpn-foo Enter Private Key Password: ************* (I first tried to implement this by calling "systemd-notify --ready" from the "up" script, but systemd-notify is not reliable.)
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