Exclude the gemspec from packaged files

Author: OskarEichler

timeout.gemspec

@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
 
   spec.files = Dir.chdir(__dir__) do
     `git ls-files -z`.split("\x0").reject do |f|
-      (f == __FILE__) || f.match(%r{\A(?:(?:bin|test|spec|features|rakelib)/|\.(?:git|travis|circleci)|appveyor|Rakefile)})
+      (f == File.basename(__FILE__)) || f.match(%r{\A(?:(?:bin|test|spec|features|rakelib)/|\.(?:git|travis|circleci)|appveyor|Rakefile)})
     end
   end
   spec.require_paths = ["lib"]