Tweak NEWS wrapping

Author: hadley

NEWS

@@ -13,8 +13,8 @@ NEW FEATURES
   `annotation_raster`, an even faster special case, for when you want to draw
   the same raster in each panel.
 
-* `geom_violin`: an implementation violin plots, which are a way of visualizing
-  kernel density estimates. (Thanks to Winston Chang)
+* `geom_violin`: an implementation violin plots, which are a way of
+  visualizing kernel density estimates. (Thanks to Winston Chang)
 
 * New fortify methods have been added for objects produced by the `multcomp`
   package.