gibloc: Use the same license as the original libloc

Yawning · Yawning · commit 867c7de35d95 · 2023-08-15T14:01:03.000+09:00
diff --git a/LICENSE.txt b/LICENSE.txt
diff --git a/gibloc.go b/gibloc.go
@@ -1,6 +1,6 @@
 // Copyright (c) 2023 Yawning Angel
 //
-// SPDX-License-Identifier: SSPL-1.0
+// SPDX-License-Identifier: LGPL-2.1-only
 
 // Package gibloc provides IP location information from a libloc format
 // database.
diff --git a/gibloc_test.go b/gibloc_test.go
@@ -1,6 +1,6 @@
 // Copyright (c) 2023 Yawning Angel
 //
-// SPDX-License-Identifier: SSPL-1.0
+// SPDX-License-Identifier: LGPL-2.1-only
 
 package gibloc
 
diff --git a/internal/db/db.go b/internal/db/db.go
@@ -1,6 +1,6 @@
 // Copyright (c) 2023 Yawning Angel
 //
-// SPDX-License-Identifier: SSPL-1.0
+// SPDX-License-Identifier: LGPL-2.1-only
 
 // Package db implements the libloc on-disk file format.
 package db
diff --git a/internal/db/db_v1.go b/internal/db/db_v1.go
@@ -1,6 +1,6 @@
 // Copyright (c) 2023 Yawning Angel
 //
-// SPDX-License-Identifier: SSPL-1.0
+// SPDX-License-Identifier: LGPL-2.1-only
 
 package db
 
diff --git a/signature.go b/signature.go
@@ -1,6 +1,6 @@
 // Copyright (c) 2023 Yawning Angel
 //
-// SPDX-License-Identifier: SSPL-1.0
+// SPDX-License-Identifier: LGPL-2.1-only
 
 package gibloc
 
diff --git a/updater.go b/updater.go
@@ -1,6 +1,6 @@
 // Copyright (c) 2023 Yawning Angel
 //
-// SPDX-License-Identifier: SSPL-1.0
+// SPDX-License-Identifier: LGPL-2.1-only
 
 package gibloc
 
