remove IO#close_on_exec= calls

Since we've required Ruby 2.0+ for a while, we can assume
descriptors are created with IO#close_on_exec=true and
avoid bloating our code with calls to it.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/test_wbuf.rb b/test/test_wbuf.rb
index 89825db..0135958 100644
--- a/test/test_wbuf.rb
+++ b/test/test_wbuf.rb
@@ -19,7 +19,7 @@ class TestWbuf < Testcase
   end
 
   def socketpair
-    KgioUS.pair.each { |io| io.close_on_exec = true }
+    KgioUS.pair
   end
 
   def test_wbuf