Log Message:
devel/hs-fgl: Update to 5.8.2.0

5.8.2.0
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* Data.Graph.Inductive.Graph now only requires Graph, not DynGraph
  (issue #100).

* Documented that some functions are partial (issue #98).

* Add `insert` function as synonym for `&` (issue #90).

5.8.1.1
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* Data.Graph.Inductive.Query.Dominators.{dom,iDom} could fail for some
  graphs (issue #109, regression in 5.8.1.0).

5.8.1.0
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* Data.Graph.Inductive.PatriciaTree.Gr and
  Data.Graph.Inductive.Tree.Gr now have Functor instances.

* 'Gr a' is now an instance of Functor.