Use actual type instead of type variable#89
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Use `Msg` instead of `msg` in the signature of `viewValidation`. `msg` works because, I guess (extrapolating from my poor Haskell knowledge) is a type variable (`a` would work too). But maybe someone reading the tutorial may get confused about the change in the signature.
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Msginstead ofmsgin the signature ofviewValidation.msgworks because, I guess (extrapolating from my poor Haskell knowledge) is a type variable (awould work too). But maybe someone reading the tutorial may get confused about the change in the signature.