Add Tabloid paper size to menu_print_page_size array

src/drivers/Posix/Fl_Posix_Printer_Driver.cxx

@@ -277,6 +277,9 @@ int Fl_Posix_Printer_Driver::begin_job(int pages, int *firstpage, int *lastpage,
     case 8:
       format = Fl_Paged_Device::DLE;
       break;
+    case 9:
+      format = Fl_Paged_Device::TABLOID;
+      break;
     default:
       format = Fl_Paged_Device::A4;
   }

src/print_panel.cxx

@@ -118,6 +118,7 @@ static const Fl_Menu_Item menu_print_page_size[] = {
   {"B5", 0,  0, 0, 0, FL_NORMAL_LABEL, 0, 14, 0},
   {"Com10", 0,  0, 0, 0, FL_NORMAL_LABEL, 0, 14, 0},
   {"DL", 0,  0, 0, 0, FL_NORMAL_LABEL, 0, 14, 0},
+  {"Tabloid", 0,  0, 0, 0, FL_NORMAL_LABEL, 0, 14, 0},
  {0,0,0,0,0,0,0,0,0}
 };