Update format

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

setup.cfg

@@ -20,7 +20,7 @@ classifiers =
     Programming Language :: Python :: 3 :: Only
     Topic :: Software Development
     Topic :: Utilities
-keywords = 
+keywords =
     utilities
 
 [options]
@@ -43,4 +43,4 @@ testing =
 docs=
     Sphinx>=3.3.1
     sphinx-rtd-theme>=0.5.0
-    doc8>=0.8.1
+    doc8>=0.8.1