fixup! erp5_interface_post: action to export all exportable Letter Post in only one PDF document

bt5/erp5_interface_post/SkinTemplateItem/portal_skins/erp5_interface_post/LetterPostModule_exportExportableLetterPostDialog/my_description.xml

@@ -249,7 +249,7 @@
                 </item>
                 <item>
                     <key> <string>title</string> </key>
-                    <value> <string>Explanation</string> </value>
+                    <value> <string>Description</string> </value>
                 </item>
                 <item>
                     <key> <string>truncate</string> </key>