From: Carsten Schoenert <c.schoenert@t-online.de>
Date: Sun, 26 Dec 2021 17:51:47 +0100
Subject: Fix up deprecation warning from setuptools

Using dashes within variables is deprecated, setuptools is warning about
this.

/usr/lib/python3/dist-packages/setuptools/dist.py:723: UserWarning: Usage of dash-separated 'description-file' will not be supported in future versions. Please use the underscore name 'description_file' instead
---
 setup.cfg | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/setup.cfg b/setup.cfg
index 5aef279..ddb7da9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,2 +1,2 @@
 [metadata]
-description-file = README.rst
+description_file = README.rst
