Shorten Spanish key translations in Linux

Change-Id: I3405e0fb4d9d7992d9da15a162311b7a0e75db76
Reviewed-on: https://gerrit.libreoffice.org/10030Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/unx/generic/app/keysymnames.cxx

@@ -322,15 +322,15 @@ namespace vcl_sal {
         { XK_Home, "Inicio" },
         { XK_Delete, "Supr" },
         { XK_Escape, "Esc" },
-        { XK_Right, "Hacia la derecha" },
-        { XK_Left, "Hacia la izquierda" },
-        { XK_Up, "Hacia arriba" },
-        { XK_Down, "Hacia abajo" },
+        { XK_Right, "Derecha" },
+        { XK_Left, "Izquierda" },
+        { XK_Up, "Arriba" },
+        { XK_Down, "Abajo" },
         { XK_BackSpace, "Ret" },
         { XK_Return, "Entrada" },
         { XK_space, "Espacio" },
         { XK_KP_Enter, "Intro" },
-        { SunXK_Stop,  "Stop" },
+        { SunXK_Stop,  "Detener" },
         { SunXK_Again, "Repetir" },
         { SunXK_Props, "Props" },
         { SunXK_Undo,  "Anular" },