windows: list all enum values in switch block

windows: list all enum values in switch block

A switch block in interactive.c is missing the _undo_type_max value
of the neum set, thus triggering a compiler warning.

Due to the logic, this value cannot really be assigned to the variable
being examinated, however, add the missing enum value to silence
the warning.

Fixes:

interactive.c: In function ‘Undo’:
interactive.c:1561:13: warning: enumeration value ‘_undo_type_max’ not
handled in switch [-Wswitch]
 1561 |             switch (type)
      |             ^~~~~~

Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20210501130640.9330-4-a@unstable.cc>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg22267.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>