Merge pull request #8891 from tchaikov/wip-fix-test-using-dash

test/encoding/readable.sh: use bash instead of sh

Reviewed-by: Brad Hubbard <bhubbard@redhat.com>

diff --cc src/test/encoding/readable.sh
index f713c8d73ccc4dff67d7955e82a333ad5752f101,bcec7558e0ac3d3128962f8a46af2508fdca0201..c3bc06144faf8b67befbb2b314c90f0ec1c349a7
--- 1/src/test/encoding/readable.sh
--- 2/src/test/encoding/readable.sh
+++ b/src/test/encoding/readable.sh
@@@ -1,7 -1,5 +1,7 @@@
- #!/bin/sh -e
+ #!/bin/bash -e
  
 +source $(dirname $0)/../detect-build-env-vars.sh
 +
  [ -z "$CEPH_ROOT" ] && CEPH_ROOT=..
  
  dir=$CEPH_ROOT/ceph-object-corpus