clean build warning

diff --git a/Annex/ExternalAddonProcess.hs b/Annex/ExternalAddonProcess.hs
index 988ee550eb4d8637c441e005dfdf4574b7cc49b4..8a6c6c32fd003abd2138fbab96693889fd0bc2f1 100644 (file)
--- a/Annex/ExternalAddonProcess.hs
+++ b/Annex/ExternalAddonProcess.hs
@@ -67,7 +67,7 @@ startExternalAddonProcess basecmd pid = do
                                        `onException` cleanupProcess pall
                        -- This thread will exit after consuming any
                        -- remaining stderr from the process.
-                       wait stderrelay
+                       () <- wait stderrelay
                        hClose herr
                return $ ExternalAddonProcess
                        { externalSend = hin