chomp!

/*
 *  call-seq:
 *     chomp!             => $_ or nil
 *     chomp!(string)     => $_ or nil
 *  
 *  Equivalent to <code>$_.chomp!(<em>string</em>)</code>. See
 *  <code>String#chomp!</code>
 *     
 *     $_ = "now\n"
 *     chomp!       #=> "now"
 *     $_           #=> "now"
 *     chomp! "x"   #=> nil
 *     $_           #=> "now"
 */

static VALUE
rb_f_chomp_bang(argc, argv)
    int argc;
    VALUE *argv;
{
    return rb_str_chomp_bang(argc, argv, uscore_get());
}