Pull request "more ideomatic indentation"

Hello!

Thanks for providing La Clojure to us as the clojure community! Great work.

I just changed a "not-so-idomatic" way of code intendation. So, instead of formatting like this

```clojure
(defn testfn [a]
  (let [b (fn [x]
    (+ a x))]
...
)
```
this would be formatted like this:
```clojure
(defn testfn [a]
  (let [b (fn [x]
            (+ a x))]
...
)
```


Hope you agree with me on this, and pull this minor improvement. I updated both the code an the test, so it should be pretty straightforward. However, if there's any issue with this request, just let me know.


Greetings from Hamburg, Germany

Chris

--
Dr. Christian Betz
HEROLABS