[PATCH] Use equivalent parent's constructor code for VcTreeStore

[Vincent Legoll <vincent legoll gmail com>]

Use DiffTreeStore's constructor as it is the same code, with the ntree
parameter set to 1

-- 
Vincent Legoll

Index: vcview.py
===================================================================
--- vcview.py	(révision 1157)
+++ vcview.py	(copie de travail)
@@ -89,11 +89,7 @@
 
 class VcTreeStore(tree.DiffTreeStore):
     def __init__(self):
-        types = [type("")] * COL_END
-        types[tree.COL_ICON] = type(tree.pixbuf_file)
-        gtk.TreeStore.__init__(self, *types)
-        self.ntree = 1
-        self._setup_default_styles()
+        tree.DiffTreeStore.__init__(self, 1)
         self.textstyle[tree.STATE_MISSING] = '<span foreground="#000088" strikethrough="true" weight="bold">%s</span>'
 
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