Fix Rubocop offences

lib/octokit/connection.rb

@@ -209,8 +209,8 @@ def parse_query_and_convenience_headers(options)
 
     def response_data_correctly_encoded(response)
       # TODO: I'm guessing base64 content responses are still broken, but this fixes the bug we're running into
-      content_type= response.headers.fetch("content-type", "")
-      return response.data unless content_type.include?("charset") && response.data.is_a?(String)
+      content_type = response.headers.fetch('content-type', '')
+      return response.data unless content_type.include?('charset') && response.data.is_a?(String)
 
       reported_encoding = content_type.match(/charset=([^ ]+)/)[1]
       response.data.force_encoding(reported_encoding)

spec/octokit/client/contents_spec.rb

@@ -26,11 +26,11 @@
       assert_requested :get, github_url('/repos/octokit/octokit.rb/contents/lib/octokit.rb')
     end
 
-    it "returns the contents of a file properly encoded as specified by the response headers" do
-      contents = @client.contents("octokit/octokit.rb", :path => "spec/fixtures/utf8.en.js", accept: "application/vnd.github.V3.raw")
-      expect(contents).to eq(File.read("spec/fixtures/utf8.en.js"))
+    it 'returns the contents of a file properly encoded as specified by the response headers' do
+      contents = @client.contents('octokit/octokit.rb', path: 'spec/fixtures/utf8.en.js', accept: 'application/vnd.github.V3.raw')
+      expect(contents).to eq(File.read('spec/fixtures/utf8.en.js'))
       expect(contents.encoding).to eq(Encoding::UTF_8)
-      assert_requested :get, github_url("/repos/octokit/octokit.rb/contents/spec/fixtures/utf8.en.js")
+      assert_requested :get, github_url('/repos/octokit/octokit.rb/contents/spec/fixtures/utf8.en.js')
     end
   end # .contents