Added hint to board editor add.

Clover/res/values/strings.xml

@@ -44,6 +44,7 @@
     <string name="board_edit">Edit available boards</string>
     <string name="board_edit_summary">Add or remove boards</string>
     <string name="board_add">Add board</string>
+    <string name="board_add_hint">Board code e.g. lit</string>
     <string name="board_add_success">Added board</string>
     <string name="board_add_duplicate">Board already added</string>
     <string name="board_add_unknown_title">Unknown board code</string>

Clover/src/org/floens/chan/ui/activity/BoardEditor.java

@@ -209,6 +209,7 @@ public class BoardEditor extends Activity {
         text.setAdapter(fillAdapter);
         text.setThreshold(1);
         text.setDropDownHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
+        text.setHint(R.string.board_add_hint);
 
         AlertDialog dialog = new AlertDialog.Builder(this)
                 .setPositiveButton(R.string.add, new DialogInterface.OnClickListener() {