BEE Backport regress/scripts/bpipe.sh

This commit is the result of the squash of the following main commits:

Author: Eric Bollengier <eric@baculasystems.com>
Date:   Thu Jul 12 15:48:28 2018 +0200

    regress: Add bpipe2-test to check stderr handling

diff --git a/regress/scripts/bpipe.sh b/regress/scripts/bpipe.sh
new file mode 100755 (executable)
index 0000000..708fc59
--- /dev/null
+++ b/regress/scripts/bpipe.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+echo "This is a message for Bacula" >&2
+echo "This is the content of the file"