Log Message:
Update to 1.03:

1.03  Tue May  3 06:47:39 EDT 2005

    - Add shell-quote script.

1.02  Thu Feb 10 22:08:27 EST 2005

    - Allow qw(! % + , : @ ^) to appear without being quoted.  (This was
      in 1.01, but I forgot to mention it.)

1.01  Wed Feb  9 20:43:46 EST 2005

    - Have shell_quote() croak if the string can't be encoded
      (currently, if it contains NULs).
    - Add shell_quote_best_effort() which will return what it can
      instead.