[#58876780] make slave 2 have java 6 for licensify
[#58876780] jenkins::slave::labels is not actually intelligent.

I also think needing the double quotes at this level is probably a bug in the upstream module. I'm going to look into that.
Merge pull request #62 from alphagov/58876780_java_6

[#58876780] make slave 2 have java 6 for licensify

merging since ive pushed it to production anyway.