a strange "not together in the source-file " message from SWI-Prolog Version 7.1.22

Hi,

I have found a strange warning message from SWI-Prolog Version 7.1.22-60-g41b8e1c, 
which I never seen before. it is reproducible by this:

% swipl -s  <path-to-the-swipl-7.1.22/library/clp/clpfd.pl>
Warning: ..../swipl-7.1.22/library/clp/clpfd.pl:675:
	Clauses of clpfd:domain_num_elements/2 are not together in the source-file
Welcome to SWI-Prolog (Multi-threaded, 64 bits, Version 7.1.22-60-g41b8e1c)
Copyright (c) 1990-2014 University of Amsterdam, VU Amsterdam
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.

For help, use ?- help(Topic). or ?- apropos(Word).

?-


Kuniaki Mukai
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