NAME
        ConvToLower -- convert a character to lower case. (V38)

   SYNOPSIS
        char = ConvToLower(locale,character);
        D0                 A0     D0

        ULONG ConvToLower(struct locale *,ulong);

   FUNCTION
        This function tests if the character specified is upper case. If it is
        then the lower case version of that character is returned, and if it
        isn't then the original character is returned.

   INPUTS
        locale - the locale to use for the conversion
        character - the character to convert

   RESULT
        char - a (possibly) converted character

   NOTE
        This function requires a full 32-bit character be passed-in in order
        to support multi-byte character sets.