/*  clean.h    For Free Chat    By Bill Kendrick  kendrick@zippy.sonoma.edu  http://zippy.sonoma.edu/kendrick/    September 29, 1996 - June 10, 1997*//* Converts "<", ">", and "&" in a string into "&lt;", "&gt;" and "&amp;".   Turns "funny" characters (< ASCII32 or > ASCII 127) into spaces. */void clean(char * str);