t_client.sh: Do not wait 3 seconds for OpenVPN to come up

t_client.sh: Do not wait 3 seconds for OpenVPN to come up

On most machines 1 second should be quite enough. Given
that we run currently 23 tests on most t_client runs, this
makes over 40 seconds difference. Not nothing.

We keep the existing 30s maximum wait-time since sometimes
we want to do tests with intentionally slow servers.

Change-Id: Ice8c7ff4d8118a9e6465a4724207a355138360b8
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20250807203741.31359-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg32585.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>