indeed, you are correct. i do have File::Find::Rule installed, but t\File-Find-Rule.t does not match the date in the distro. i must have modified it when installing, and forgotten to submit a patch to rt. the line you mention reads, in my distro:

$expr =~ s~\\~~g if ($^O =~ m/Win32/ or $^O eq 'dos');
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i believe this test is more accurate than that in the orginal distro (as it works for me.)

~Particle *accelerates*