make backspace scroll up an entire page in tog diff view
diff --git a/tog/tog.c b/tog/tog.c
index 4f289f3..a39d6b3 100644
--- a/tog/tog.c
+++ b/tog/tog.c
@@ -974,11 +974,11 @@ show_diff_view(struct got_object *obj1, struct got_object *obj2,
break;
case 'k':
case KEY_UP:
- case KEY_BACKSPACE:
if (first_displayed_line > 1)
first_displayed_line--;
break;
case KEY_PPAGE:
+ case KEY_BACKSPACE:
i = 0;
while (i++ < LINES - 1 &&
first_displayed_line > 1)