backporting posix_spawn-based popen implementation in 2.29

glibc-rh2065588-9.patch

@@ -0,0 +1,21 @@
+commit 542160f0b6a7c26758c9575a8876f6624a5dd65f
+Author: Girish Joshi <girish946@gmail.com>
+Date:   Mon Mar 2 15:19:29 2020 -0500
+
+    Fixed typo in run_command_array() in support/shell-container.c
+    
+    https://sourceware.org/bugzilla/show_bug.cgi?id=23991
+
+diff --git a/support/shell-container.c b/support/shell-container.c
+index 9bd90d3f60529079..e87ac5cf1baa84e5 100644
+--- a/support/shell-container.c
++++ b/support/shell-container.c
+@@ -228,7 +228,7 @@ run_command_array (char **argv)
+       if (new_stderr != 2)
+ 	{
+ 	  dup2 (new_stderr, 2);
+-	  close (new_stdout);
++	  close (new_stderr);
+ 	}
+ 
+       if (builtin_func != NULL)