Clearned gemspec

Author: kojix2

iruby.gemspec

@@ -10,20 +10,20 @@ Gem::Specification.new do |s|
   s.homepage      = 'https://github.com/SciRuby/iruby'
   s.license       = 'MIT'
 
-  s.files         = `git ls-files`.split($/)
+  s.files         = `git ls-files`.split($INPUT_RECORD_SEPARATOR)
   s.executables   = s.files.grep(%r{^bin/}) { |f| File.basename(f) }
   s.test_files    = s.files.grep(%r{^test/})
-  s.require_paths = %w(lib)
+  s.require_paths = %w[lib]
 
   s.required_ruby_version = '>= 2.3.0'
 
   s.add_dependency 'bond', '~> 0.5'
-  s.add_dependency 'multi_json', '~> 1.11'
-  s.add_dependency 'mimemagic', '~> 0.3'
   s.add_dependency 'data_uri', '~> 0.1'
   s.add_dependency 'ffi-rzmq'
+  s.add_dependency 'mimemagic', '~> 0.3'
+  s.add_dependency 'multi_json', '~> 1.11'
 
-  s.add_development_dependency 'rake'
   s.add_development_dependency 'minitest'
   s.add_development_dependency 'pycall', '>= 1.2.1'
+  s.add_development_dependency 'rake'
 end