updated contributors according to recent PR #5

Author: mbdevpl

NOTICE

@@ -1,5 +1,6 @@
 version-query
 Copyright (c) 2017-2020  Mateusz Bysiek  https://mbdevpl.github.io/
+Copyright (c) 2020  John Vandenberg  https://github.com/jayvdb
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

setup.py

@@ -9,6 +9,8 @@ class Package(setup_boilerplate.Package):
     name = 'version-query'
     description = 'Package version query toolkit for Python'
     url = 'https://github.com/mbdevpl/version-query'
+    author = 'Mateusz Bysiek, John Vandenberg'
+    maintainer = 'Mateusz Bysiek'
     classifiers = [
         'Development Status :: 5 - Production/Stable',
         'Environment :: Console',

version_query/main.py

@@ -24,7 +24,8 @@ def main(args=None, namespace=None) -> None:
         prog='version_query',
         description='''Tool for querying current versions of Python packages. Use LOGGING_LEVEL
         environment variable to adjust logging level.''',
-        epilog='Copyright 2017-2020 Mateusz Bysiek https://mbdevpl.github.io/ , Apache License 2.0',
+        epilog='''Copyright 2017-2020 by the contributors, Apache License 2.0,
+        https://github.com/mbdevpl/version-query''',
         formatter_class=argparse.ArgumentDefaultsHelpFormatter)
     parser.add_argument('-i', '--increment', action='store_true', help='''output version string for
                         next patch release, i.e. if version is 1.0.3, output 1.0.4''')