Fix hanging tag chars in setup.cfg

Signed-off-by: Steven Esser <sesser@nexb.com>

Author: steven-esser

setup.cfg

@@ -10,10 +10,10 @@ description = skeleton
 long_description = file:README.rst
 url = https://github.com/nexB/skeleton
 classifiers =
-	Development Status :: 5 - Production/Stable
-	Intended Audience :: Developers
-	Programming Language :: Python :: 3
-	Programming Language :: Python :: 3 :: Only
+    Development Status :: 5 - Production/Stable
+    Intended Audience :: Developers
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
     Topic :: Software Development
     Topic :: Utilities
 keywords = 
@@ -32,6 +32,6 @@ where=src
 
 [options.extras_require]
 testing =
-	# upstream
-	pytest >= 6
-    pytest-xdist >= 2
+    # upstream
+    pytest >= 6
+    pytest-xdist >= 2