The argument is now always treated as a plain string and passed directly
to the cheat. This is the behavior expected by all the functions in
xCheat.py, which parse the string argument manually where needed.
The previous implementation evaluated the argument value as a Python
expression. This theoretically allowed passing non-string arguments, but
none of the cheats use this (and it's also a potential code execution
issue). If no argument was passed, the function was called with no
arguments, which is also not supported by any of the cheats.
In practice, this required unintuitive syntax for calling the cheats
correctly, for example:
Python.Cheat GetPlayerID None
Python.Cheat GetSDL "'FirstWeekClothing'"
With the new argument handling, these have been simplified to:
Python.Cheat GetPlayerID
Python.Cheat GetSDL FirstWeekClothing