Forbid any later GNU GPL versions autousage

diff --git a/printer.go b/printer.go
index bae787c602be55c31d77e6ddf36f0e2433f20c23..97e00287a16df46105b59ec9b0f5207ab0dcda06 100644 (file)
--- a/printer.go
+++ b/printer.go
@@ -4,8 +4,7 @@ Copyright (C) 2015-2019 Sergey Matveev <stargrave@stargrave.org>
 
 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, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, version 3 of the License.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of

diff --git a/syncer.go b/syncer.go
index 4c7157c4e69350c337676637714d3886681b2cee..dc46d16c359dbb8b59bac26994cf145106f537c3 100644 (file)
--- a/syncer.go
+++ b/syncer.go
@@ -4,8 +4,7 @@ Copyright (C) 2015-2019 Sergey Matveev <stargrave@stargrave.org>
 
 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, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, version 3 of the License.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of