tdf#146312 - Chapter numbering dialog: adapt extended tooltip for [None]

Change-Id: I71cddd45a336d6e201e23fdf1c93928ec2928a0c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/149987
Tested-by: Jenkins
Reviewed-by: Andreas Heinisch <andreas.heinisch@yahoo.de>
diff --git a/sw/uiconfig/swriter/ui/outlinenumberingpage.ui b/sw/uiconfig/swriter/ui/outlinenumberingpage.ui
index 68af7bf..dfcf1e299 100644
--- a/sw/uiconfig/swriter/ui/outlinenumberingpage.ui
+++ b/sw/uiconfig/swriter/ui/outlinenumberingpage.ui
@@ -180,9 +180,10 @@
                    <property name="visible">True</property>
                    <property name="can-focus">False</property>
                    <property name="hexpand">True</property>
                    <property name="tooltip-text" translatable="yes" context="outlinenumberingpage|tooltip_text|style">Select the paragraph style to assign to the selected outline level. Select [None] to skip the outline level.</property>
                    <child internal-child="accessible">
                      <object class="AtkObject" id="style-atkobject">
                        <property name="AtkObject::accessible-description" translatable="yes" context="outlinenumberingpage|extended_tip|style">Select the paragraph style to assign to the selected outline level.</property>
                        <property name="AtkObject::accessible-description" translatable="yes" context="outlinenumberingpage|extended_tip|style">Select the paragraph style to assign to the selected outline level. Select [None] to skip the outline level.</property>
                      </object>
                    </child>
                  </object>