test/test_server: fix leftover process from inherit test

Oops, this test bug was introduced in:
commit e413325737f23c5ec27a02246f95077bc1fb038d
("acceptor: close inherited-but-unneeded sockets")

1 files changed, 3 insertions, 1 deletions

diff --git a/test/test_server.rb b/test/test_server.rb
index b7cb3e6..0410f65 100644
--- a/test/test_server.rb
+++ b/test/test_server.rb
@@ -815,7 +815,7 @@ class TestServer < Testcase
       GTL.synchronize { app(:rack, ru) { listen "#{host}:#{port}" } }
       logger(Logger.new(err.path))
     end
-    mkserver(cfg, @srv) do
+    pid = mkserver(cfg, @srv) do
       s2.autoclose = false
       ENV["YAHNS_FD"] = "#{@srv.fileno},#{s2.fileno}"
     end
@@ -842,5 +842,7 @@ class TestServer < Testcase
     assert_nil a2.read(1)
     a2.close
     s2.close
+  ensure
+    quit_wait(pid)
   end
 end