Bug: Generates broken code when combining respect-nl and ns-justify

Hi, thanks for a great formatter! There seems to be a bug when combining the `:respect-nl` and `:ns-justify` styles. I think I've reproduced an as minimal example that I can. ```edn {:style [:respect-nl :ns-justify] :width 80} ``` ```clojure (ns test (:require [very.long.namespace.that-hits-the-limit-in-this-weird-way :as my-weird-way-ns] [short-namespace-after :as foo])) ``` On the first pass of the formatter this results in ```clojure (ns test (:require [very.long.namespace.that-hits-the-limit-in-this-weird-way :as my-weird-way-ns] [short-namespace-after :as foo])) ``` which I guess is somewhat fine. However on running the formatter again it breaks the code, combining the `:as` keyword with the preceding symbol. ```clojure (ns test (:require [very.long.namespace.that-hits-the-limit-in-this-weird-way:as my-weird-way-ns] [short-namespace-after :as foo])) ``` Noteably the fourth line here is exactly 80 characters, matching the width. If I add another character to the alias the problem doesn't occur.