Fix comment

ghcide/src/Development/IDE/Core/FileStore.hs

@@ -269,7 +269,7 @@ typecheckParentsAction nfp = do
           `catch` \(e :: SomeException) -> log (show e)
         () <$ uses GetModIface rs
 
--- | Note that some buffer somewhere has been modified, but don't say what.
+-- | Note that some keys have been modified and restart the session
 --   Only valid if the virtual file system was initialised by LSP, as that
 --   independently tracks which files are modified.
 setSomethingModified :: IdeState -> [SomeShakeValue] -> IO ()