Fix segfaults on 32bit arch with --log-level=debug

There were a few improper uses of %ld for 64 bit numbers, as well as
some other 32 bit related warnings that I've fixed.

Signed-off-by: ktprograms <ktprograms@gmail.com>

src/win.c

@@ -958,7 +958,7 @@ static void win_determine_shadow(session_t *ps, struct managed_win *w) {
  * things.
  */
 void win_update_prop_shadow(session_t *ps, struct managed_win *w) {
-	long attr_shadow_old = w->prop_shadow;
+	long long attr_shadow_old = w->prop_shadow;
 
 	win_update_prop_shadow_raw(ps, w);