use elixir 1.13

Author: the-mikedavis

.tool-versions

@@ -1,2 +1,2 @@
-elixir 1.10.3-otp-21
-erlang 21.0
+elixir 1.13.4-otp-24
+erlang 24.3

config/config.exs

@@ -1,3 +1,3 @@
-use Mix.Config
+import Config
 
 import_config "#{Mix.env()}.exs"

config/dev.exs

@@ -1 +1 @@
-use Mix.Config
+import Config

config/prod.exs

@@ -1 +1 @@
-use Mix.Config
+import Config

config/test.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :kelvin, ExtremeClient,
   db_type: :node,

lib/kelvin/in_order_subscription.ex

@@ -152,7 +152,9 @@ defmodule Kelvin.InOrderSubscription do
 
   defp dequeue(state) do
     case :queue.out(state.buffer) do
+      # coveralls-ignore-start
       {:empty, buffer} ->
+        # coveralls-ignore-stop
         {:empty, %{state | buffer: buffer, buffer_size: 0}}
 
       {value, buffer} ->