fdo#51763 - make title of dialog localisable

Following the bug report the title is currently not correctly
localisable for Catalan language due format issues.

Change-Id: I09107acb3f4acd7acf5a614216265373c59938b2
Reviewed-on: https://gerrit.libreoffice.org/9883Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

svtools/source/filter/exportdialog.cxx

@@ -639,9 +639,7 @@ ExportDialog::ExportDialog(FltCallDialogParameter& rPara,
     mnMaxFilesizeForRealtimePreview = mpOptionsItem->ReadInt32(OUString("MaxFilesizeForRealtimePreview"), 0);
     mpFtEstimatedSize->SetText(OUString(" \n "));
 
-    OUString aTitle(maExt);
-    aTitle += GetText();
-    SetText(aTitle);
+    SetText( GetText().replaceFirst("%1", maExt) ); //Set dialog title
 
     mnFormat = GetFilterFormat( maExt );
 

svtools/uiconfig/ui/graphicexport.ui

@@ -23,7 +23,7 @@
   <object class="GtkDialog" id="GraphicExportDialog">
     <property name="can_focus">False</property>
     <property name="border_width">6</property>
-    <property name="title" translatable="yes"> Options</property>
+    <property name="title" translatable="yes">%1 Options</property>
     <property name="type_hint">dialog</property>
     <child internal-child="vbox">
       <object class="GtkBox" id="dialog-vbox1">