test/test_copies.rb in zold-0.2 vs test/test_copies.rb in zold-0.3

@@ -19,10 +19,10 @@
 # SOFTWARE.
 
 require 'minitest/autorun'
 require 'tmpdir'
 require 'time'
-require_relative '../lib/zold/copies.rb'
+require_relative '../lib/zold/copies'
 
 # Copies test.
 # Author:: Yegor Bugayenko ([e-mail])
 # Copyright:: Copyright (c) 2018 Yegor Bugayenko
 # License:: MIT