Use Elixir function

Author: nathanl

lib/db_connection/util.ex

@@ -31,8 +31,8 @@ defmodule DBConnection.Util do
   Set a process label if `Process.set_label/1` is available.
   """
   def set_label(label) do
-    if function_exported?(:proc_lib, :set_label, 1) do
-      :proc_lib.set_label(label)
+    if function_exported?(Process, :set_label, 1) do
+      Process.set_label(label)
     else
       :ok
     end