Log Message:
Update to dwm-5.4.1.

Changes:
 dwm-5.4.1:
  Bugfix release.
 dwm-5.4:
  This release doesn't draw any borders around tiled clients if there is
  only 1 tiled client in the view. This saves some extra space of screen
  real estate for the application in use -- and provides a hint in
  monocle layout if there are more clients managed by dwm or not.