fix csv output

[dogancanbakir]

$ go run . -list host.lst -top-ports 1000 -o result.csv -csv -cdn -exclude-cdn -scan-all-ips

before
result.csv:

after
result.csv:

Please note that two columns in rows 6-11 are missing in the fields.

Closes #882.

[Mzack9999]

lgtm - I think probably it's worth tracking in a follow up ticket to split the port components (...,port-protocol-TLS,...) into independent fields (...,port,protocol,tls,...)