Restore help button in Pivot Table Dialog

Change-Id: I9602fbb7edd7c7370a806cc0a61b3743a13229de
Reviewed-on: https://gerrit.libreoffice.org/11080Reviewed-by: Thomas Arnhold <thomas@arnhold.org>
Tested-by: Thomas Arnhold <thomas@arnhold.org>

sc/uiconfig/scalc/ui/pivottablelayoutdialog.ui

@@ -29,7 +29,7 @@
               <packing>
                 <property name="expand">True</property>
                 <property name="fill">True</property>
-                <property name="position">1</property>
+                <property name="position">0</property>
               </packing>
             </child>
             <child>
@@ -43,6 +43,20 @@
               <packing>
                 <property name="expand">True</property>
                 <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkButton" id="help">
+                <property name="label">gtk-help</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <property name="use_stock">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
                 <property name="position">2</property>
               </packing>
             </child>