Fix mode when creating FireHOL ipset directory

[srilumpa]

Hi,

I tried to use the FireHOL analyzer on last version but encountered the following error when executing it:

$ ./analyzers/FireHOLBlocklists/firehol_blocklists.py <<< '{"data":"1.2.3.4", "dataType":"ip", "config":{"blocklistpath": "/tmp/firehol"}}'
  File "./analyzers/FireHOLBlocklists/firehol_blocklists.py", line 30
    os.mkdir(self.path, 0700)
                           ^
SyntaxError: invalid token

This pull request seems to fix it.

$ ./analyzers/FireHOLBlocklists/firehol_blocklists.py <<< '{"data":"1.2.3.4", "dataType":"ip", "config":{"blocklistpath": "/tmp/firehol"}}'
{"success": true, "summary": {"taxonomies": [{"level": "safe", "namespace": "Firehol", "predicate": "Blocklists", "value": "\"0 hit\""}]}, "artifacts": [], "full": {"hits": [], "count": 0}}

Best regards.

[3c7]

Yes, thank you.