using port 8003 for testing intread of 8080. (#479)

Author: kazu-yamamoto

tests/Network/SocketSpec.hs

@@ -34,7 +34,7 @@ spec = do
               return sock
 
         it "fails to connect and throws an IOException" $ do
-            connect' (8080 :: Int) `shouldThrow` anyIOException
+            connect' (8003 :: Int) `shouldThrow` anyIOException
 
         it "successfully connects to a socket with no exception" $ do
             withPort $ \portVar -> test (tcp serverAddr return portVar)