Don't overwrite ssh_host_key_files if set manually

[oakey-b1]

before the manually set ssh_host_key_files would be overwritten if the openssh-version was greater than 5.3

[rndmh3ro]

Hey @oakey-b1, thanks for trying to improve our role!
As you can see in travis (https://travis-ci.org/dev-sec/ansible-ssh-hardening/jobs/254355014), this does not work. However I'm not actually sure why this happens.

Where do you see the problem with overriding the variables?

[oakey-b1]

Hi @rndmh3ro,
the point for overwriting the vars is that if you have a (company) policy, which restricts the usage of some type of key you would have modify the role.

about the failing tests, looks like it is the defaults/main.yml, I'll test and then update it

[oakey-b1]

fixed

[rndmh3ro]

Thanks!