Require 'tmpdir' only in the tests.

hainesr · hainesr · commit e87184200ab9 · 2019-09-27T16:28:02.000+01:00
It's not used in the library code.
diff --git a/lib/zip.rb b/lib/zip.rb
@@ -1,7 +1,6 @@
 require 'delegate'
 require 'singleton'
 require 'tempfile'
-require 'tmpdir'
 require 'fileutils'
 require 'stringio'
 require 'zlib'
diff --git a/test/test_helper.rb b/test/test_helper.rb
@@ -2,6 +2,7 @@
 require 'minitest/autorun'
 require 'minitest/unit'
 require 'fileutils'
+require 'tmpdir'
 require 'digest/sha1'
 require 'zip'
 require 'gentestfiles'
