qemu-iotests: explicitly use bash interpreter

The tests use bash language features like 'let', which aren't supported
by /bin/sh on systems that use a conservative shell like dash.  This
patch changes the interpreter to /bin/bash.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/tests/qemu-iotests/001 b/tests/qemu-iotests/001
index bb96dca..fe66a8e 100755
--- a/tests/qemu-iotests/001
+++ b/tests/qemu-iotests/001
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test simple read/write using plain bdrv_read/bdrv_write
 #
diff --git a/tests/qemu-iotests/002 b/tests/qemu-iotests/002
index a634e1e..57af974 100755
--- a/tests/qemu-iotests/002
+++ b/tests/qemu-iotests/002
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test simple read/write using plain bdrv_pread/bdrv_pwrite
 #
diff --git a/tests/qemu-iotests/003 b/tests/qemu-iotests/003
index 23a406e..656da99 100755
--- a/tests/qemu-iotests/003
+++ b/tests/qemu-iotests/003
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test simple read/write using bdrv_aio_readv/bdrv_aio_writev
 #
diff --git a/tests/qemu-iotests/004 b/tests/qemu-iotests/004
index 0c45845..3de7ed8 100755
--- a/tests/qemu-iotests/004
+++ b/tests/qemu-iotests/004
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Make sure we can't read and write outside of the image size.
 #
diff --git a/tests/qemu-iotests/005 b/tests/qemu-iotests/005
index 1debdc4..480276b 100755
--- a/tests/qemu-iotests/005
+++ b/tests/qemu-iotests/005
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Make sure qemu-img can create 5TB images
 #
diff --git a/tests/qemu-iotests/006 b/tests/qemu-iotests/006
index 58b8213..98ef4ea 100755
--- a/tests/qemu-iotests/006
+++ b/tests/qemu-iotests/006
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Make sure qemu-img rejects > 127GB images for the vpc format as the format
 # doesn't support this.
diff --git a/tests/qemu-iotests/007 b/tests/qemu-iotests/007
index b2b6df3..2de1aa4 100755
--- a/tests/qemu-iotests/007
+++ b/tests/qemu-iotests/007
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Check for one possible case of qcow2 refcount corruption.
 #
diff --git a/tests/qemu-iotests/008 b/tests/qemu-iotests/008
index 26d1102..b697deb 100755
--- a/tests/qemu-iotests/008
+++ b/tests/qemu-iotests/008
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test simple asynchronous read/write operations.
 #
diff --git a/tests/qemu-iotests/009 b/tests/qemu-iotests/009
index ebcc8de..1499b77 100755
--- a/tests/qemu-iotests/009
+++ b/tests/qemu-iotests/009
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Nolan I qcow2 corruption - incorrectly reports free clusters
 #
diff --git a/tests/qemu-iotests/010 b/tests/qemu-iotests/010
index 2cb5eeb..440e9f6 100755
--- a/tests/qemu-iotests/010
+++ b/tests/qemu-iotests/010
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Nolan II qcow2 corruption - wrong used cluster
 #
diff --git a/tests/qemu-iotests/011 b/tests/qemu-iotests/011
index 9106e74..87b4082 100755
--- a/tests/qemu-iotests/011
+++ b/tests/qemu-iotests/011
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test for AIO allocation on the same cluster
 #
diff --git a/tests/qemu-iotests/012 b/tests/qemu-iotests/012
index a1b45fc..32a2647 100755
--- a/tests/qemu-iotests/012
+++ b/tests/qemu-iotests/012
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Make sure we can open read-only images
 #
diff --git a/tests/qemu-iotests/013 b/tests/qemu-iotests/013
index bd9fdef..0671bf6 100755
--- a/tests/qemu-iotests/013
+++ b/tests/qemu-iotests/013
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # qcow2 pattern test, empty and compressed image - 4k cluster patterns
 #
diff --git a/tests/qemu-iotests/014 b/tests/qemu-iotests/014
index ee7bf21..f38af43 100755
--- a/tests/qemu-iotests/014
+++ b/tests/qemu-iotests/014
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # qcow2 pattern test, complex patterns including compression and snapshots
 # Using patterns for 4k cluster size.
diff --git a/tests/qemu-iotests/015 b/tests/qemu-iotests/015
index 34b475f..f3b0acc 100755
--- a/tests/qemu-iotests/015
+++ b/tests/qemu-iotests/015
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Combined test to grow the refcount table and test snapshots.
 #
diff --git a/tests/qemu-iotests/016 b/tests/qemu-iotests/016
index 1dbdcb5..e09ab86 100755
--- a/tests/qemu-iotests/016
+++ b/tests/qemu-iotests/016
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test I/O after EOF for growable images.
 #
diff --git a/tests/qemu-iotests/017 b/tests/qemu-iotests/017
index 1580ef7..d861961 100755
--- a/tests/qemu-iotests/017
+++ b/tests/qemu-iotests/017
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Simple backing file reads
 #
diff --git a/tests/qemu-iotests/018 b/tests/qemu-iotests/018
index c6233f1..0a348fe 100755
--- a/tests/qemu-iotests/018
+++ b/tests/qemu-iotests/018
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Merge backing file into test image when converting the image
 #
diff --git a/tests/qemu-iotests/019 b/tests/qemu-iotests/019
index 20893c5..711255e 100755
--- a/tests/qemu-iotests/019
+++ b/tests/qemu-iotests/019
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # When using a backing file for the output image in qemu-img convert,
 # the backing file clusters must not copied. The data must still be
diff --git a/tests/qemu-iotests/020 b/tests/qemu-iotests/020
index 4c9778d..546e074 100755
--- a/tests/qemu-iotests/020
+++ b/tests/qemu-iotests/020
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Commit changes to backing file
 #
diff --git a/tests/qemu-iotests/021 b/tests/qemu-iotests/021
index c0241ae..eb61230 100755
--- a/tests/qemu-iotests/021
+++ b/tests/qemu-iotests/021
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test handling of invalid patterns arguments to qemu-io
 #
diff --git a/tests/qemu-iotests/022 b/tests/qemu-iotests/022
index ccf2319..635ad14 100755
--- a/tests/qemu-iotests/022
+++ b/tests/qemu-iotests/022
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Test bdrv_load/save_vmstate using the usual patterns
 #
diff --git a/tests/qemu-iotests/023 b/tests/qemu-iotests/023
index 883ca47..55c5be7 100755
--- a/tests/qemu-iotests/023
+++ b/tests/qemu-iotests/023
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # qcow2 pattern test with various cluster sizes
 #
diff --git a/tests/qemu-iotests/024 b/tests/qemu-iotests/024
index 3cad287..2b2ebf1 100755
--- a/tests/qemu-iotests/024
+++ b/tests/qemu-iotests/024
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Rebasing COW images
 #
diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check
index 8652e8c..e0eaa7a 100755
--- a/tests/qemu-iotests/check
+++ b/tests/qemu-iotests/check
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (C) 2009 Red Hat, Inc.
 # Copyright (c) 2000-2002,2006 Silicon Graphics, Inc.  All Rights Reserved.
diff --git a/tests/qemu-iotests/common b/tests/qemu-iotests/common
index c246766..988fd5e 100644
--- a/tests/qemu-iotests/common
+++ b/tests/qemu-iotests/common
@@ -1,4 +1,4 @@
-#!/bin/sh 
+#!/bin/bash
 #
 # Copyright (C) 2009 Red Hat, Inc.
 # Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
diff --git a/tests/qemu-iotests/common.config b/tests/qemu-iotests/common.config
index cbbf39d..bdd0530 100644
--- a/tests/qemu-iotests/common.config
+++ b/tests/qemu-iotests/common.config
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (C) 2009 Red Hat, Inc.
 # Copyright (c) 2000-2003,2006 Silicon Graphics, Inc.  All Rights Reserved.
diff --git a/tests/qemu-iotests/common.filter b/tests/qemu-iotests/common.filter
index ba464a5..ce81266 100644
--- a/tests/qemu-iotests/common.filter
+++ b/tests/qemu-iotests/common.filter
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (C) 2009 Red Hat, Inc.
 # Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
diff --git a/tests/qemu-iotests/common.pattern b/tests/qemu-iotests/common.pattern
index a40d0d0..c2b84b8 100644
--- a/tests/qemu-iotests/common.pattern
+++ b/tests/qemu-iotests/common.pattern
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (C) 2009 Red Hat, Inc.
 #
diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index 0a7ba00..da58f92 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (C) 2009 Red Hat, Inc.
 # Copyright (c) 2000-2006 Silicon Graphics, Inc.  All Rights Reserved.