fixup!

Author: ulysses4ever

cabal-install/src/Distribution/Client/ProjectPlanning.hs

@@ -468,7 +468,7 @@ rebuildProjectConfig
           -- message formatting depends on |config files| (the number of config files)
           message = case configFilesDoc of
             (_ : _ : _ : _) ->
-              -- \|config files| > 2 => vertical list
+              -- |config files| > 2 => vertical list
               vcat
                 [ affectedByMsg <> text "the following files:"
                 , configFilesVertList