ports/64845: Par must exclude non-breaking space from the class of space chars

[Jean-Baptiste Quenot]

As  suggested by  Greg  Shenaut  <gkshenaut at ucdavis.edu>, the  following
statement would  be closer  to the original  intention of  the upstreams
author:

if (isspace(c) && isascii(c)) ch = ' ';

Regards,
-- 
Jean-Baptiste Quenot
http://caraldi.com/jbq/