MWFIX                                                         Non-menu command
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Fixes any wall or opening not displayed correctly.

        1. (CHAR) fix option: w-wall, o-opening & wall <n>
     if reply is `w':
        2. (IND) wall to fix
        3. (Y/N) confirm choice
     if reply is `o':
        2. (IND) opening to fix
        3. (Y/N) confirm choice
        4. (IND) wall containing opening
        5. (Y/N) confirm choice

Description:
It is possible that a multi-layer wall may be incorrectly displayed as
a result of an illegal command sequence. This can be corrected using this
command.
State whether you want to fix a wall or, a wall and an opening. If you select
`w', indicate and confirm the wall to be fixed. The wall will be "healed." If
you select `o', indicate and confirm the opening to be fixed and then indicate
and confirm the wall in which it is placed.
