Add GPL-3.0-or-later SPDX identifier to all scripts

Add the SPDX license identifier GPL-3.0-or-later to the header of all
scripts without a specific license and upgrading those that are stated
as GPL-2.0 to become GPL-3.0-or-later.

4 files changed, 9 insertions, 5 deletions

diff --git a/lib/archroot.sh b/lib/archroot.sh
index 8f063cd..d7917da 100644
--- a/lib/archroot.sh
+++ b/lib/archroot.sh
@@ -1,5 +1,6 @@
 #!/hint/bash
-# License: Unspecified
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
 :
 
 # shellcheck disable=2034
diff --git a/lib/common.sh b/lib/common.sh
index 12604d8..0092a45 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -1,7 +1,8 @@
 #!/hint/bash
+#
 # This may be included with or without `set -euE`
-
-# License: Unspecified
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
 
 [[ -z ${_INCLUDE_COMMON_SH:-} ]] || return 0
 _INCLUDE_COMMON_SH="$(set +o|grep nounset)"
diff --git a/lib/valid-repos.sh b/lib/valid-repos.sh
index 252fdcf..9ac9639 100644
--- a/lib/valid-repos.sh
+++ b/lib/valid-repos.sh
@@ -1,5 +1,6 @@
 #!/hint/bash
-# License: Unspecified
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
 :
 
 # shellcheck disable=2034
diff --git a/lib/valid-tags.sh b/lib/valid-tags.sh
index 3cfe046..d628fd1 100644
--- a/lib/valid-tags.sh
+++ b/lib/valid-tags.sh
@@ -1,5 +1,6 @@
 #!/hint/bash
-# License: Unspecified
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
 :
 
 # shellcheck disable=2034