management: >REMOTE operation would overwrite ce change indicator

management: >REMOTE operation would overwrite ce change indicator

If the management interface on a client received a signal while waiting
for input on the management channel, the "connection entry changed" status
would be overwritten even though nothing was changed.  Which could lead
into connecting to the wrong server.

This patch improves this by adding a check if a bool value was changed to
false.  This change happens only on signals.

Further, the former 'ret' value have been renamed to 'ce_changed', to
clarify what the expected return value contains.  Plus adding some comments
related to this.

And finally do some code style cleanup, breaking up too long lines, adding
some air here and there to improve the readability.

Signed-off-by: David Sommerseth <davids@openvpn.net>
Cc: Selva Nair <selva.nair@gmail.com>
Acked-by: Selva Nair <selva.nair@gmail.com>
Message-Id: <1484080473-10415-1-git-send-email-davids@openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg13851.html
Signed-off-by: David Sommerseth <davids@openvpn.net>
(cherry picked from commit e81f313a71e548638d9e9679226ee84b3b614f13)