Reduce data size of the package

Author: hidakatsuya

prawn-emoji.gemspec

@@ -13,8 +13,9 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.4'
 
-  spec.files         = `git ls-files`.split("\n")
-  spec.test_files    = `git ls-files -- {test}/*`.split("\n")
+  spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^test/}) }
+  end
   spec.require_path  = 'lib'
 
   spec.add_runtime_dependency 'prawn', '~> 2.2.0'