Change lineWrapping from saying false to using prefs.lineWrapping()

In I8600778f106 lineWrapping options for edit and diff screens were added.
However, for edit screen, the default was missed to be set to the new option.
It was still set to false, so that the value of new option was ignored.

Reported-By: David Ostrovsky <david.ostrovsky@gmail.com>
Change-Id: Ibd1315a3e95ae01bb830a140c3113df0262ef072
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/editor/EditScreen.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/editor/EditScreen.java
index 3dbb1c3..8a141f1 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/editor/EditScreen.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/editor/EditScreen.java
@@ -565,7 +565,7 @@
         .set("indentUnit", prefs.indentUnit())
         .set("keyMap", prefs.keyMapType().name().toLowerCase())
         .set("lineNumbers", prefs.hideLineNumbers())
-        .set("lineWrapping", false)
+        .set("lineWrapping", prefs.lineWrapping())
         .set("matchBrackets", prefs.matchBrackets())
         .set("mode", mode != null ? mode.mime() : null)
         .set("origLeft", editContent)