fix FD leaks

* test/net/http/test_http.rb (test_s_start): finish connections to
  get rid of FD leaks.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58855 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/net/http/test_http.rb

@@ -234,17 +234,29 @@ end
 module TestNetHTTP_version_1_1_methods
 
   def test_s_start
-    h = Net::HTTP.start(config('host'), config('port'))
+    begin
+      h = Net::HTTP.start(config('host'), config('port'))
+    ensure
+      h.finish
+    end
     assert_equal config('host'), h.address
     assert_equal config('port'), h.port
     assert_equal true, h.instance_variable_get(:@proxy_from_env)
 
-    h = Net::HTTP.start(config('host'), config('port'), :ENV)
+    begin
+      h = Net::HTTP.start(config('host'), config('port'), :ENV)
+    ensure
+      h.finish
+    end
     assert_equal config('host'), h.address
     assert_equal config('port'), h.port
     assert_equal true, h.instance_variable_get(:@proxy_from_env)
 
-    h = Net::HTTP.start(config('host'), config('port'), nil)
+    begin
+      h = Net::HTTP.start(config('host'), config('port'), nil)
+    ensure
+      h.finish
+    end
     assert_equal config('host'), h.address
     assert_equal config('port'), h.port
     assert_equal false, h.instance_variable_get(:@proxy_from_env)