grape.gemspec in grape-1.8.0 vs grape.gemspec in grape-2.0.0

@@ -25,12 +25,9 @@
   s.add_runtime_dependency 'dry-types', '>= 1.1'
   s.add_runtime_dependency 'mustermann-grape', '~> 1.0.0'
   s.add_runtime_dependency 'rack', '>= 1.3.0'
   s.add_runtime_dependency 'rack-accept'
 
-  s.files         = %w[CHANGELOG.md CONTRIBUTING.md README.md grape.png UPGRADING.md LICENSE]
-  s.files        += %w[grape.gemspec]
-  s.files        += Dir['lib/**/*']
-  s.test_files    = Dir['spec/**/*']
+  s.files = Dir['lib/**/*', 'CHANGELOG.md', 'CONTRIBUTING.md', 'README.md', 'grape.png', 'UPGRADING.md', 'LICENSE', 'grape.gemspec']
   s.require_paths = ['lib']
   s.required_ruby_version = '>= 2.6.0'
 end