Resolves: tdf#120345 wrong text model column used for line GtkComboBox

Change-Id: I6804fea72e105b118c8ef0228ca295ddfc0b1454
Reviewed-on: https://gerrit.libreoffice.org/61427
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

cui/uiconfig/ui/lineendstabpage.ui

@@ -109,6 +109,7 @@
                         <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="model">liststore4</property>
+                        <property name="entry_text_column">0</property>
                         <property name="id_column">1</property>
                         <child>
                           <object class="GtkCellRendererText" id="cellrenderertext3"/>

cui/uiconfig/ui/linestyletabpage.ui

@@ -115,6 +115,7 @@
                             <property name="halign">start</property>
                             <property name="model">liststore4</property>
                             <property name="active">0</property>
+                            <property name="entry_text_column">0</property>
                             <property name="id_column">1</property>
                             <child>
                               <object class="GtkCellRendererText" id="cellrenderertext3"/>

cui/uiconfig/ui/linetabpage.ui

@@ -181,6 +181,7 @@
                             <property name="visible">True</property>
                             <property name="can_focus">False</property>
                             <property name="model">liststore5</property>
+                            <property name="entry_text_column">0</property>
                             <property name="id_column">1</property>
                             <child>
                               <object class="GtkCellRendererText" id="cellrenderertext7"/>
@@ -403,6 +404,7 @@
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <property name="model">liststore4</property>
+                                <property name="entry_text_column">0</property>
                                 <property name="id_column">1</property>
                                 <child>
                                   <object class="GtkCellRendererText" id="cellrenderertext1"/>
@@ -427,6 +429,7 @@
                                 <property name="visible">True</property>
                                 <property name="can_focus">False</property>
                                 <property name="model">liststore6</property>
+                                <property name="entry_text_column">0</property>
                                 <property name="id_column">1</property>
                                 <child>
                                   <object class="GtkCellRendererText" id="cellrenderertext3"/>