open GAO, "> $af.new" or die $!;
print GAO <<END or die $!;
* dgit-defuse-attrs
-[attr]dgit-defuse-attrs -text -eol -crlf -ident -filter
+[attr]dgit-defuse-attrs $negate_harmful_gitattrs
# ^ see GITATTRIBUTES in dgit(7) and dgit setup-new-tree in dgit(1)
END
my $gai = open_gitattrs();