Restore custom `Show` instance for `PPTextWrapper`

src-literatetests/Main.hs

@@ -188,10 +188,10 @@ roundTripEqual c t =
     `shouldReturn` Right (PPTextWrapper t)
 
 newtype PPTextWrapper = PPTextWrapper Text
-  deriving (Eq, Show)
+  deriving Eq
 
--- instance Show PPTextWrapper where
---   show (PPTextWrapper t) = "\n" ++ Text.unpack t
+instance Show PPTextWrapper where
+  show (PPTextWrapper t) = "\n" ++ Text.unpack t
 
 -- brittany-next-binding --columns 160
 -- brittany-next-binding { lconfig_indentPolicy: IndentPolicyLeft }