From 16b34edb97468064a1e37469fbdc0b4ba4b7d952 Mon Sep 17 00:00:00 2001
From: wenxian li <wofanli@gmail.com>
Date: Sat, 23 Jun 2018 09:00:54 +0000
Subject: [PATCH] the closed threads are leaved as Zombie state

---
 gexpect.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gexpect.go b/gexpect.go
index 6e918cb..3309627 100644
--- a/gexpect.go
+++ b/gexpect.go
@@ -150,6 +150,9 @@ func (expect *ExpectSubprocess) Close() error {
 	if err := expect.Cmd.Process.Kill(); err != nil {
 		return err
 	}
+	if _, err := expect.Cmd.Process.Wait(); err != nil {
+		return err
+	}
 	if err := expect.buf.f.Close(); err != nil {
 		return err
 	}
@@ -387,7 +390,7 @@ func (expect *ExpectSubprocess) ReadUntil(delim byte) ([]byte, error) {
 		for i := 0; i < n; i++ {
 			if chunk[i] == delim {
 				if len(chunk) > i+1 {
-					expect.buf.PutBack(chunk[i+1:n])
+					expect.buf.PutBack(chunk[i+1 : n])
 				}
 				return join, nil
 			} else {