use a cleaner block syntax for building the Faraday::Response

lib/faraday.rb

@@ -10,6 +10,14 @@ module Faraday
   autoload :Connection, 'faraday/connection'
 
   class Response < Struct.new(:headers, :body)
+    def initialize(headers = nil, body = nil)
+      super(headers || {}, body)
+      if block_given?
+        yield self
+        processed!
+      end
+    end
+
     def process(chunk)
       if !body
         self.body = []
@@ -18,7 +26,7 @@ module Faraday
     end
 
     def processed!
-      self.body = body.join
+      self.body = body.join if body.respond_to?(:join)
     end
   end
 

lib/faraday/adapter/net_http.rb

@@ -4,15 +4,14 @@ module Faraday
     module NetHttp
       def _get(uri, request_headers)
         http      = Net::HTTP.new(uri.host, uri.port)
-        resp      = Response.new({})
-        http_resp = http.get(uri.path, request_headers) do |chunk|
-          resp.process(chunk)
+        Response.new do |resp|
+          http_resp = http.get(uri.path, request_headers) do |chunk|
+            resp.process(chunk)
+          end
+          http_resp.each_header do |key, value|
+            resp.headers[key] = value
+          end
         end
-        resp.processed!
-        http_resp.each_header do |key, value|
-          resp.headers[key] = value
-        end
-        resp
       end
     end
   end

lib/faraday/connection.rb

@@ -15,7 +15,6 @@ module Faraday
       end
     end
 
-    
     # Override in a subclass, or include an adapter
     #
     #   def _get(uri, headers)