Those tests don't actually need bash. Just use common shebang.
-#! /bin/bash
+#! /bin/sh
set -e
. "@builddir@/grub-core/modinfo.sh"
-#! /bin/bash
+#! /bin/sh
set -e
# Run GRUB script in a Qemu instance
-#! /bin/bash
+#! /bin/sh
set -e
. "@builddir@/grub-core/modinfo.sh"
-#! /bin/bash
+#! /bin/sh
set -e
. "@builddir@/grub-core/modinfo.sh"
-#! /bin/bash
+#! /bin/sh
# create a randome file
empty="`mktemp "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX"`" || exit 1
-#! /bin/bash -e
+#! /bin/sh -e
# Run GRUB script in a Qemu instance
# Copyright (C) 2010 Free Software Foundation, Inc.
-#! /bin/bash
+#! /bin/sh
set -e
. "@builddir@/grub-core/modinfo.sh"
-#! /bin/bash
+#! /bin/sh
# Run GRUB script in a Qemu instance
# Copyright (C) 2010 Free Software Foundation, Inc.
-#! /bin/bash
+#! /bin/sh
set -e
# Run GRUB script in a Qemu instance
-#! /bin/bash
+#! /bin/sh
set -e
. "@builddir@/grub-core/modinfo.sh"
-#! /bin/bash
+#! /bin/sh
# create a randome file
file="`mktemp "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX"`" || exit 1