here is something you don't see every day....

But given this completes modelling of saml, samlp and md SAML 2 xml schema lets do a close review of develop before we dump it into master
```
[1] pry(main)> 'test string with a
[1] pry(main)*      line break and white space
[1] pry(main)*      in the middle'
=> "test string with a\n     line break and white space\n     in the middle"
[2] pry(main)> 'test string using ' \
[2] pry(main)* 'the automatic concatenation ' \
[2] pry(main)* 'supported by the interpreter'
=> "test string using the automatic concatenation supported by the interpreter"
```

You probably want the latter.