finally properly fixed ssh zombie leak

The leak was caused by the thread that sshd'd to send transferinfo
not waiting on its ssh. Doh.

Remote/Helper/Ssh.hs

@@ -102,20 +102,13 @@ dropKey r key = onRemote r (boolSystem, False) "dropkey"
 rsyncHelper :: Maybe MeterUpdate -> [CommandParam] -> Annex Bool
 rsyncHelper callback params = do
 	showOutput -- make way for progress bar
-	ok <- ifM (liftIO $ (maybe rsync rsyncProgress callback) params)
+	ifM (liftIO $ (maybe rsync rsyncProgress callback) params)
 		( return True
 		, do
 			showLongNote "rsync failed -- run git annex again to resume file transfer"
 			return False
 		)
 
-	{- For an unknown reason, this causes rsync to run a second
-	 - ssh process, which it neglects to wait on.
-	 - Reap the resulting zombie. -}
-	liftIO reapZombies
-
-	return ok
-
 {- Generates rsync parameters that ssh to the remote and asks it
  - to either receive or send the key's content. -}
 rsyncParamsRemote :: Bool -> Remote -> Direction -> Key -> FilePath -> AssociatedFile -> Annex [CommandParam]