[lazarus] patch for bug 1673

[Andrew Haines]

Hi this fixes bug 1673, it was just a typo.

Andrew

Index: gtkproc.pp
===================================================================
--- gtkproc.pp  (revision 8600)
+++ gtkproc.pp  (working copy)
@@ -1180,7 +1180,7 @@
   XEvent.format := 32;
   XEvent.data.l[0] := _NET_WM_STATE_ADD;
   XEvent.data.l[1] := _NET_WM_STATE_MAXIMIZED_HORZ;
-  XEvent.data.l[1] := _NET_WM_STATE_MAXIMIZED_VERT;
+  XEvent.data.l[2] := _NET_WM_STATE_MAXIMIZED_VERT;
 
   XSendEvent(XDisplay, aXRootWindow, False, SubstructureNotifyMask, @XEvent);
 end;