[gnome-builder] pnl: add missing break

[Christian Hergert <chergert src gnome org>]

commit 35a7f23540cfba78e3e1b7445ab612e14b4180ec
Author: Christian Hergert <christian hergert me>
Date:   Mon Apr 18 19:06:49 2016 -0700

    pnl: add missing break

 contrib/pnl/pnl-dock-bin.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/contrib/pnl/pnl-dock-bin.c b/contrib/pnl/pnl-dock-bin.c
index ff54493..9e52168 100644
--- a/contrib/pnl/pnl-dock-bin.c
+++ b/contrib/pnl/pnl-dock-bin.c
@@ -749,6 +749,7 @@ pnl_dock_bin_child_size_allocate (PnlDockBin      *self,
         case PNL_DOCK_BIN_CHILD_LEFT:
           handle_alloc.x += handle_alloc.width - HANDLE_WIDTH;
           handle_alloc.width = HANDLE_WIDTH;
+          break;
 
         case PNL_DOCK_BIN_CHILD_RIGHT:
           handle_alloc.width = HANDLE_WIDTH;