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"haskell-contravariant" versions published in Ubuntu

Groovy (1.5.2-1build1): universe/haskell
Focal (1.5.2-1build1): universe/haskell
Eoan (1.5.2-1build1): universe/haskell
Bionic (1.4-3build2): universe/haskell
Xenial (1.3.3-1build1): universe/haskell
Trusty (0.4.4-1): universe/haskell
Precise (0.1.3-1): universe/haskell