Displays the command sequence needed to recreate (object).
The ALL option will unbuild all of a room's exits or all of a
player's (or ownergroup's) objects.
Like EXAMINE, You can only @UNBUILD objects you can control.
Note: dbrefs are printed as ##(number), in case you need to
change them, which is very likely if you're rebuilding an
area. The best approach is to perform the object creation
commands first, and then perform global search and replaces on
the dbrefs refered to by the remaining commands.
Some experimentation will be handy... but as long as you
unbuild all you own into a log file, there will be at least an
easier way to rebuild it all later if needed.