ShuttlegGUI: const wxArrayStringEx & arguments, not wxArrayString *...

... for choice, combo, and listbox; reference allows passing temporaries,
eliminating need for some variables to hold the string arrays.

src/Internat.cpp

@@ -300,10 +300,10 @@ wxString Internat::StripAccelerators(const wxString &s)
    return result;
 }
 
-wxArrayString LocalizedStrings(
+wxArrayStringEx LocalizedStrings(
    const EnumValueSymbol strings[], size_t nStrings)
 {
-   return transform_range<wxArrayString>(
+   return transform_range<wxArrayStringEx>(
       strings, strings + nStrings,
       std::mem_fn( &EnumValueSymbol::Translation )
    );