Adds the non-keypad arrow keys to be detected.

With additional Medley calls to KEYACTION (below), they should work in TTYIN (i.e., XCL and Interlisp EXECs).
I didn't try TEDIT.
They are unrecognized in SEDIT. (In any case, their use there probably is pretty restricted by the nature of SEDIT.)

(KEYACTION 'KEYPAD8 '(("Meta,^" 56 NOLOCKSHIFT) . IGNORE))
(KEYACTION 'KEYPAD6 '(("Meta,>" 54 NOLOCKSHIFT) . IGNORE))
(KEYACTION 'KEYPAD4 '(("Meta,<" 52 NOLOCKSHIFT) . IGNORE))
(KEYACTION 'KEYPAD2 '(("Meta,^J" 50 NOLOCKSHIFT) . IGNORE))

Author: MattHeffron

inc/XKeymap.h

@@ -221,17 +221,17 @@ static const int generic_X_keymap[] = {
     /* keypad digit assignments above, try assigning */
     /* the new arrow-key key#s assigned for RS/6000  */
     /* Failing that, try assigning the keypad #s.    */
+    1, 84, XK_Left,
     0, 129, XK_Left,
-    0, 84, XK_Left,
 
+    1, 82, XK_Up,
     0, 130, XK_Up,
-    0, 82, XK_Up,
 
+    1, 69, XK_Down,
     0, 131, XK_Down,
-    0, 69, XK_Down,
 
+    1, 87, XK_Right,
     0, 132, XK_Right,
-    0, 87, XK_Right,
 
     0, 93, XK_Multi_key,   /* Expand, Sun type-4 */
     0, 93, XK_Alt_R,       /* Expand, RH Alt key  */