Have urxvt send proper signal on C-arrows

dotfiles.config/Xlib/global.Xdefaults

@@ -30,3 +30,9 @@ URxvt.saveLines:            32767
 URxvt.cursorUnderline:      false
 URxvt.cursorBlink:          true
 URxvt.pointerBlankDelay:    999999999
+
+!## let C-arrows behave like in other terms
+URxvt.keysym.Control-Up:    \033[1;5A
+URxvt.keysym.Control-Down:  \033[1;5B
+URxvt.keysym.Control-Left:  \033[1;5D
+URxvt.keysym.Control-Right: \033[1;5C