Name: capitalize - capitalize a string

Syntax: 
	string capitalize(string str)

Description:
	The capitalize efun converts the first character in "str" to upper
	case.

Return value: the capitalized string

Examples:
	string name;
	name=this_player()->query_real_name();
	write(capitalize(name)+" looks silly.\n");
	
See also: efun/lower_case, efun/upper_case, lib/a_or_an, lib/cap