Handle the sysmerge move.

src/etc/mtree/BSD.x11.dist

@@ -1,4 +1,4 @@
-#       $OpenBSD: BSD.x11.dist,v 1.34 2014/07/15 09:27:04 ajacoutot Exp $
+#       $OpenBSD: BSD.x11.dist,v 1.35 2014/07/16 16:11:51 ajacoutot Exp $
 
 /set type=dir uname=root gname=wheel mode=0755
 .
@@ -415,6 +415,10 @@
                 ..
             ..
         ..
+        share
+            sysmerge
+            ..
+        ..
     ..
     var
         cache