Fix menu localization not updated for "Open Tab..." item (#12993)

THe menu item "Open Tab..." was changed to "Open &Tab..." in #12895 but
localization files were not updated. Update it here.

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/lang/menu_es_es.latin1.vim b/runtime/lang/menu_es_es.latin1.vim
index e6aceb9..4920d59 100644
--- a/runtime/lang/menu_es_es.latin1.vim
+++ b/runtime/lang/menu_es_es.latin1.vim
@@ -38,7 +38,7 @@
 menutrans &Open\.\.\.<Tab>:e		&Abrir\.\.\.<Tab>:e
 menutrans Sp&lit-Open\.\.\.<Tab>:sp	A&brir\ en\ otra\ ventana\.\.\.<Tab>:sp
 menutrans &New<Tab>:enew		&Nuevo<Tab>:enew
-menutrans Open\ Tab\.\.\.<Tab>:tabnew	Abrir\ pes&taña\.\.\.<Tab>:tabnew
+menutrans Open\ &Tab\.\.\.<Tab>:tabnew	Abrir\ pes&taña\.\.\.<Tab>:tabnew
 menutrans &Close<Tab>:close		&Cerrar<Tab>:close
 menutrans &Save<Tab>:w			&Guardar<Tab>:w
 menutrans Save\ &As\.\.\.<Tab>:sav	Guardar\ &como\.\.\.<Tab>:sav