security/vuxml: fix validate target due to split of files

[mfechner]

Summary

Currently the validate target does not work.
This should fix it, it also shows some possible errors, but I do not know the process in detail, so someone else should look onto it.

The validate target no uses the vuln-flat.xml file.
Added a port-clean target to get rid of files you want not to commit.

[gjb]

I think Baptiste is a better person to review this change.

[bapt]

Would be nice to have context within the diff that would help reviewing ;)

I am not sure diffing against the entire file is a good idea, first of all the entity declaration is still lost by tidy.xsl (easily fixable)

second bsd diff is quite slow to perform a diff on such very large file.

Last the copyright at the top of every vuln-*.xml file will always disappear in the tidy version but not in the flat version always adding some noise.

I haven't made my mind yet, just throwing the first idea that are coming through my mind while reviewing ;)

Makefile

84

This should be the new variable you have been creating earlier

[mfechner]

As these changes were commited, I will close this review.