[PATCH 1/2] tuna: Update copyright notices to reflect current maintainership

Update copyright notices in core tuna files to add John Kacur as
copyright holder for the period 2015-2026, reflecting the current
maintainership of the project. Arnaldo Carvalho de Melo's original
copyright is preserved.

Changes made to:
- tuna-cmd.py: Main command-line interface
- tuna/__init__.py: Core tuna module
- tuna/gui/__init__.py: GUI initialization module

The copyright format has been updated to use single line per copyright
holder for clarity.

Assisted-by: Claude:claude-sonnet-4-5
Signed-off-by: John Kacur <[email protected]>
---
 tuna-cmd.py          | 4 ++--
 tuna/__init__.py     | 3 ++-
 tuna/gui/__init__.py | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/tuna-cmd.py b/tuna-cmd.py
index d83e57732360..293044920223 100755
--- a/tuna-cmd.py
+++ b/tuna-cmd.py
@@ -2,8 +2,8 @@
 # -*- python -*-
 # -*- coding: utf-8 -*-
 #   tuna - Application Tuning GUI
-#   Copyright (C) 2008, 2009, 2010, 2011 Red Hat Inc.
-#   Arnaldo Carvalho de Melo <[email protected]>
+#   Copyright (C) 2008-2011 Arnaldo Carvalho de Melo <[email protected]>
+#   Copyright (C) 2015-2026 John Kacur <[email protected]>
 #
 # SPDX-License-Identifier: GPL-2.0-only
 
diff --git a/tuna/__init__.py b/tuna/__init__.py
index 614e3e4c7ed8..2dd132b98268 100755
--- a/tuna/__init__.py
+++ b/tuna/__init__.py
@@ -1,5 +1,6 @@
 """
-Copyright (c) 2008, 2009 Red Hat Inc.
+Copyright (c) 2008-2009 Arnaldo Carvalho de Melo <[email protected]>
+Copyright (c) 2015-2026 John Kacur <[email protected]>
 
 Application Tuning GUI
 """
diff --git a/tuna/gui/__init__.py b/tuna/gui/__init__.py
index a40f86292e6f..4ecefcf8cad5 100755
--- a/tuna/gui/__init__.py
+++ b/tuna/gui/__init__.py
@@ -1,7 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 """
-Copyright (c) 2009  Red Hat Inc.
+Copyright (c) 2009 Arnaldo Carvalho de Melo <[email protected]>
+Copyright (c) 2015-2026 John Kacur <[email protected]>
 
 Application Tuning GUI
 """
-- 
2.54.0