Fix off by one error in test

It doesn't affect the test outcome, but it is not the intended behaviour of
the test.

We listen once to find out what port to use, then should bind with SO_REUSEPORT
N-1 times, but we are doing it N times, so we have one extra listener.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/test_linux_reuseport_tcp_listen_stats.rb b/test/test_linux_reuseport_tcp_listen_stats.rb
index c977c43..73995ea 100644
--- a/test/test_linux_reuseport_tcp_listen_stats.rb
+++ b/test/test_linux_reuseport_tcp_listen_stats.rb
@@ -36,7 +36,7 @@ class TestLinuxReuseportTcpListenStats < Test::Unit::TestCase
     listeners = 10
     _, port = new_socket_server(reuseport: true)
     addr = "#{TEST_ADDR}:#{port}"
-    listeners.times do
+    (listeners - 1).times do
       new_socket_server(reuseport: true, port: port)
     end