remove newline characters at the end of msg() calls

remove newline characters at the end of msg() calls

Unlike debugging with printf(), or msg() calls do not need or want
a '\n' at the end of the string.  Remove those that were overlooked.

Change-Id: I889b53ed72efaec546a6609491fae9715726ea00
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20250912131609.43444-1-frank@lichtenheld.com>
URL: https://sourceforge.net/p/openvpn/mailman/message/59232448/
URL: https://gerrit.openvpn.net/c/openvpn/+/1180
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit 340b5b2d264a47c24aa948efb83ffa04e0e9c7e2)