An update in TeX Live causes the test to pass (also for Kornel), so
now we uninvert the test.
I looked at the output file, and it seems fine to me (although it is
long, and I just checked briefly).
# Files in the attic with non-default output
# (i.e. could be ERT, package incompatiblity, ...)
-export/doc/attic/it_(Customization_pdf5|UserGuide_dvi3|UserGuide_pdf4)_systemF
+export/doc/attic/it_(UserGuide_dvi3|UserGuide_pdf4)_systemF
export/doc/attic/sk_UserGuide_pdf4_texF
export/doc/attic/id_UserGuide_.*systemF