From the NannyMUD documentation

LAST CHANGE

2000-12-14

FUNCTION

NAME
        lower_case - Decapitalize a string.


SYNTAX
	string lower_case(string str)

DESCRIPTION
	This function returns a string that is a copy of the argument
	string `str' but with all letters lower-case. 


SEE ALSO
        capitalize in efun/type_related/capitalize


SEE ALSO
        upper_case in efun/type_related/upper_case