From 0914d270004799333f9ea921d254b58d4573474a Mon Sep 17 00:00:00 2001
From: Mike Gerwitz <mike@mikegerwitz.com>
Date: Mon, 12 May 2014 21:38:15 -0400
Subject: [PATCH] File descriptor 99 is reserved for internal use

It should not, by convention, be used by any test cases; its opening here
will (presumably, at least) prevent the shell from automatically allocating
it for any file operations and subshells.
---
 src/expect-core | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/expect-core b/src/expect-core
index 29dbb45..50a18ff 100644
--- a/src/expect-core
+++ b/src/expect-core
@@ -22,6 +22,9 @@
 [ -z $__INC_EXPECT_CORE ] || return
 __INC_EXPECT_CORE=1
 
+# reserved for our uses
+exec 99<>/dev/null
+
 
 ##
 # Shorthand for bailing out on unrecognized clauses