-/* Move active window forwards (set dir="f") or backwards (set dir="b"). Wrap
- * around in the window chain if start / end of it is met. Does nothing if no
- * window is active.
+/* Move active window forwards ("dir" == "f") or backwards (any other "dir").
+ * Wrap around in the window chain if start / end of it is met. Does nothing if
+ * no window is active.