gnuplot.lisp patch

I think that I have found a patched a very minor bug in gnuplot.lisp.

-russ


cvs diff: Diffing . 
Index: gnuplot.lisp 
=================================================================== 
RCS file: /cvsroot/clocc/clocc/src/cllib/gnuplot.lisp,v 
retrieving revision 3.19 
diff -r3.19 gnuplot.lisp 
126c126 
<       ((string pathname) 
--- 
>       ((or string pathname) 


--
Avoid cliches like the plague.


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