diff --git a/poky/scripts/lib/recipetool/append.py b/poky/scripts/lib/recipetool/append.py
index 3f2c134..e9d52bb 100644
--- a/poky/scripts/lib/recipetool/append.py
+++ b/poky/scripts/lib/recipetool/append.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2015 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import sys
 import os
diff --git a/poky/scripts/lib/recipetool/create.py b/poky/scripts/lib/recipetool/create.py
index 1810c70..98277f7 100644
--- a/poky/scripts/lib/recipetool/create.py
+++ b/poky/scripts/lib/recipetool/create.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2014-2017 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import sys
 import os
@@ -704,7 +694,7 @@
         if not args.autorev and srcrev == '${AUTOREV}':
             if os.path.exists(os.path.join(srctree, '.git')):
                 (stdout, _) = bb.process.run('git rev-parse HEAD', cwd=srctree)
-            srcrev = stdout.rstrip()
+                srcrev = stdout.rstrip()
         lines_before.append('SRCREV = "%s"' % srcrev)
     if args.provides:
         lines_before.append('PROVIDES = "%s"' % args.provides)
diff --git a/poky/scripts/lib/recipetool/create_buildsys.py b/poky/scripts/lib/recipetool/create_buildsys.py
index 4743c74..3cb0276 100644
--- a/poky/scripts/lib/recipetool/create_buildsys.py
+++ b/poky/scripts/lib/recipetool/create_buildsys.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2014-2016 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import re
 import logging
diff --git a/poky/scripts/lib/recipetool/create_buildsys_python.py b/poky/scripts/lib/recipetool/create_buildsys_python.py
index 5bd2aa3..1a38bd0 100644
--- a/poky/scripts/lib/recipetool/create_buildsys_python.py
+++ b/poky/scripts/lib/recipetool/create_buildsys_python.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2015 Mentor Graphics Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import ast
 import codecs
diff --git a/poky/scripts/lib/recipetool/create_kernel.py b/poky/scripts/lib/recipetool/create_kernel.py
index ca4996c..5740589 100644
--- a/poky/scripts/lib/recipetool/create_kernel.py
+++ b/poky/scripts/lib/recipetool/create_kernel.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2016 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import re
 import logging
diff --git a/poky/scripts/lib/recipetool/create_kmod.py b/poky/scripts/lib/recipetool/create_kmod.py
index 3982537..85b5c48 100644
--- a/poky/scripts/lib/recipetool/create_kmod.py
+++ b/poky/scripts/lib/recipetool/create_kmod.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2016 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import re
 import logging
diff --git a/poky/scripts/lib/recipetool/create_npm.py b/poky/scripts/lib/recipetool/create_npm.py
index 0366788..39429eb 100644
--- a/poky/scripts/lib/recipetool/create_npm.py
+++ b/poky/scripts/lib/recipetool/create_npm.py
@@ -2,20 +2,11 @@
 #
 # Copyright (C) 2016 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import os
+import sys
 import logging
 import subprocess
 import tempfile
diff --git a/poky/scripts/lib/recipetool/edit.py b/poky/scripts/lib/recipetool/edit.py
index c4789a9..94bdf7b 100644
--- a/poky/scripts/lib/recipetool/edit.py
+++ b/poky/scripts/lib/recipetool/edit.py
@@ -6,18 +6,8 @@
 #
 # Copyright (C) 2018 Mentor Graphics Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import argparse
 import errno
diff --git a/poky/scripts/lib/recipetool/newappend.py b/poky/scripts/lib/recipetool/newappend.py
index 76707b4..08e2474 100644
--- a/poky/scripts/lib/recipetool/newappend.py
+++ b/poky/scripts/lib/recipetool/newappend.py
@@ -7,18 +7,8 @@
 #
 # Copyright (C) 2015 Christopher Larson <kergoth@gmail.com>
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import argparse
 import errno
diff --git a/poky/scripts/lib/recipetool/setvar.py b/poky/scripts/lib/recipetool/setvar.py
index 9de315a..f8e2ee7 100644
--- a/poky/scripts/lib/recipetool/setvar.py
+++ b/poky/scripts/lib/recipetool/setvar.py
@@ -2,18 +2,8 @@
 #
 # Copyright (C) 2015 Intel Corporation
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# This program is distributed in the hope that it will 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 to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import sys
 import os