From b318c704010710d8229d3f378056b336e1d1084a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Chmielowski?= <pchmielowski@process-one.net>
Date: Wed, 2 Jan 2019 13:22:35 +0100
Subject: [PATCH] Try to remove syntax error on old elixir

---
 lib/mix/tasks/deps.tree.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/mix/tasks/deps.tree.ex b/lib/mix/tasks/deps.tree.ex
index 50189c3d2..9937270cd 100644
--- a/lib/mix/tasks/deps.tree.ex
+++ b/lib/mix/tasks/deps.tree.ex
@@ -65,7 +65,7 @@ defmodule Mix.Tasks.Ejabberd.Deps.Tree do
 
   defp keep_only_mods_not_used_as_dep(mods, mods_used_as_dep) do
     Enum.filter mods, fn %{module: mod} ->
-      mod not in mods_used_as_dep
+      not (mod in mods_used_as_dep)
     end
   end