Fix bug 1422422: No break after space open paren (#4607)
Fix bug 1422422: No break after space open paren (#4607)

- regex now only acts if there are 3 lowercase letters in a row before
  a match
- removed `-` from list of matched characters (we should break after
  dashes not before them and the browser sort of does this already)
- tried to improve comments
SphinxKnight/kuma,a2sheppy/kuma,jwhitlock/kuma,Elchi3/kuma,SphinxKnight/kuma,SphinxKnight/kuma,Elchi3/kuma,a2sheppy/kuma,Elchi3/kuma,a2sheppy/kuma,a2sheppy/kuma,jwhitlock/kuma,Elchi3/kuma,a2sheppy/kuma,mozilla/kuma,escattone/kuma,SphinxKnight/kuma,jwhitlock/kuma,escattone/kuma,jwhitlock/kuma,escattone/kuma,mozilla/kuma,SphinxKnight/kuma,jwhitlock/kuma,SphinxKnight/kuma,Elchi3/kuma,mozilla/kuma,mozilla/kuma,mozilla/kuma