[docs] Undocumented feature - should be documented.

[bob gailer]

According to the FM:

"str.translate(map)
Return a copy of the s where all characters have been mapped through the map
which must be a dictionary of Unicode ordinals (integers) to Unicode
ordinals, strings or None. Unmapped characters are left untouched.
Characters mapped to None are deleted."

So 'acxd'.translate(' '*97 + 'sdfg') should raise an exception, as the 
map is NOT a dictionary.

However it runs and returns 'sfxg' This is a very nice feature - let's 
document it!

-- 
Bob Gailer
919-636-4239
Chapel Hill NC