how timely

At first I thought it checked the date, then realized that CLISP always does this:

        i
. . . . I . . . i     ooooo    o        ooooooo   ooooo   ooooo
I I I I I I I I I    8     8   8           8     8     o  8    8
I I  \ `+' /  I I    8         8           8     8        8    8
I  \  `-+-'  /  I    8         8           8      ooooo   8oooo
 \  `-__|__-'  /     8         8           8           8  8
  `--___|___--'      8     o   8           8     o     8  8
        |             ooooo    8oooooo  ooo8ooo   ooooo   8
--------+--------

Copyright (c) Bruno Haible, Michael Stoll 1992, 1993
Copyright (c) Bruno Haible, Marcus Daniels 1994-1997
Copyright (c) Bruno Haible, Pierpaolo Bernardi, Sam Steingold 1998
Copyright (c) Bruno Haible, Sam Steingold 1999-2000
Copyright (c) Sam Steingold, Bruno Haible 2001-2005