fix panic: sync: negative WaitGroup counter

3d9286f0 · huwenbo · 55e6c150 · 3d9286f0
Commit 3d9286f0 authored Jun 13, 2017 by huwenbo
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conn.go grace/conn.go +1 -2

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--- a/grace/conn.go
+++ b/grace/conn.go
@@ -36,4 +36,4 @@ func (c graceConn) Close() (err error) {
 	c.closed = true
 	c.m.Unlock()
 	return c.Conn.Close()
-}
\ No newline at end of file
+}