xfs: convert tests to SPDX license tags

Fully scripted conversion, see script in initial SPDX license commit
message.

tests/xfs/044 was hand massaged to remove duplicate copyright and
divider lines before running the script.

Signed-off-by: Dave Chinner <dchinner@redhat.com>

tests/xfs/070

@@ -1,4 +1,7 @@
 #! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved.
+#
 # FS QA Test No. 070
 #
 # As part of superblock verification, xfs_repair checks the primary sb and
@@ -15,24 +18,6 @@
 # verify it repairs the fs correctly. We explicitly detect a brute force scan
 # and abort the repair to save time in the failure case.
 #
-#-----------------------------------------------------------------------
-# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it would be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write the Free Software Foundation,
-# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-#-----------------------------------------------------------------------
-#
-
 seq=`basename $0`
 seqres=$RESULT_DIR/$seq
 echo "QA output created by $seq"