Fix method declaration to be ruby-1.8-compatible

Author: anujdas

lib/rack/reverse_proxy_matcher.rb

@@ -1,6 +1,6 @@
 module Rack
   class ReverseProxyMatcher
-    def initialize(matcher,url=nil,options)
+    def initialize(matcher, url=nil, options={})
       @default_url=url
       @url=url
       @options=options

spec/rack/reverse_proxy_spec.rb

@@ -296,9 +296,9 @@ def app
 
       it "should proxy requests when a pattern is matched" do
         stub_request(:get, 'http://users-example.com/users?user=omer').to_return({:body => "User App"})
-        get '/test', user: "mark"
+        get '/test', :user => "mark"
         last_response.body.should == "Dummy App"
-        get '/users', user: 'omer'
+        get '/users', :user => 'omer'
         last_response.body.should == "User App"
       end
     end