ports/162783: [PATCH] www/nginx: add third party module NAXSI

[Sergey A. Osokin]

Could you please resend you patch with following modifications:

1) downstairs description of new module, right after memc in OPTIONS;
2) remove needless changes for xrid_header module;
3) do make makesum cause it looks like you are just add two strings into distinfo file;
4) also add some logic for directories of your "security" module (i.e. ${ETCDIR}/bla-bla-bla

Thank you.