[power-pro] Modify ARB script to allow dirs with "~" in fname

[quantiworks]

I've some folders prefixed by "~"
ARB v3.2 which is the version I use, gives error when trying to execute those 
folders.

The error line(133) is the following:

If(Index(LF ++ Aliases, LF ++ Word(Cmd, 1) ++ LF)) Do
Local Params = ReplaceChars(ReplaceChars(Remove(Cmd, Length(Word(Cmd, 1)) + 1), 
?"\", ?"\\"), ?'"', ?'\X22')
Do(?"." ++ ScriptName ++ ?"@" ++ Word(Cmd, 1) ++ ?'(Esc(?"' ++ Params ++ ?'", 
?"\"))')

I tried to add ?"~" to local params but it doesn't work.
What's the correct form?