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-rw-r--r--compiler/GHC/Data/Graph/Inductive/Graph.hs3
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diff --git a/compiler/GHC/Data/Graph/Inductive/Graph.hs b/compiler/GHC/Data/Graph/Inductive/Graph.hs
index 8a72c30d7a..0b1787ac0e 100644
--- a/compiler/GHC/Data/Graph/Inductive/Graph.hs
+++ b/compiler/GHC/Data/Graph/Inductive/Graph.hs
@@ -1,5 +1,8 @@
-- (c) 1999-2005 by Martin Erwig (see copyright at bottom)
-- | Static and Dynamic Inductive Graphs
+--
+-- Code is from Hackage `fgl` package version 5.7.0.3
+--
module GHC.Data.Graph.Inductive.Graph (
-- * General Type Defintions
-- ** Node and Edge Types