/************************************************************************
 *									*
 *			Copyright (c) 1982, Fred Fish			*
 *			    All Rights Reserved				*
 *									*
 *	This software and/or documentation is released for public	*
 *	distribution for personal, non-commercial use only.		*
 *	Limited rights to use, modify, and redistribute are hereby	*
 *	granted for non-commercial purposes, provided that all		*
 *	copyright notices remain intact and all changes are clearly	*
 *	documented.  The author makes no warranty of any kind with	*
 *	respect to this product and explicitly disclaims any implied	*
 *	warranties of merchantability or fitness for any particular	*
 *	purpose.							*
 *									*
 ************************************************************************
 */


/*
 *  FUNCTION
 *
 *	tolower    convert character to lower case
 *
 *  SYNOPSIS
 *
 *	char tolower(ch)
 *	char ch;
 *
 *  DESCRIPTION
 *
 *	Tolower converts a character from upper case
 *	to lower case. Characters which are already
 *	lower case or are not alphabetic are returned
 *	unmodified.
 *
 *		a   =>   a
 *		A   =>   a
 *		&   =>   &
 *		7   =>   7
 *		    .
 *		   etc
 *
 */