docs: sphinx/kernel_abi: adjust coding style

Make pylint and flake8 happier with this module's coding style

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/02a9ec0fab61e4c94b9c2ff555bc0e9d93f59100.1739182025.git.mchehab+huawei@kernel.org

Author: mchehab

Documentation/sphinx/kernel_abi.py

@@ -32,32 +32,31 @@
 
 """
 
-import codecs
 import os
+import re
 import subprocess
 import sys
-import re
 
-from docutils import nodes, statemachine
+from docutils import nodes
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives, Directive
-from docutils.utils.error_reporting import ErrorString
 from sphinx.util.docutils import switch_source_input
 from sphinx.util import logging
 
-__version__  = '1.0'
+__version__ = "1.0"
+
 
 def setup(app):
 
     app.add_directive("kernel-abi", KernelCmd)
-    return dict(
-        version = __version__
-        , parallel_read_safe = True
-        , parallel_write_safe = True
-    )
+    return {
+        "version": __version__,
+        "parallel_read_safe": True,
+        "parallel_write_safe": True
+    }
 
-class KernelCmd(Directive):
 
+class KernelCmd(Directive):
     u"""KernelABI (``kernel-abi``) directive"""
 
     required_arguments = 1
@@ -99,8 +98,8 @@ def nestedParse(self, lines, fname):
 
         if "debug" in self.options:
             code_block = "\n\n.. code-block:: rst\n    :linenos:\n"
-            for l in lines.split("\n"):
-                code_block += "\n    " + l
+            for line in lines.split("\n"):
+                code_block += "\n    " + line
             lines = code_block + "\n\n"
 
         line_regex = re.compile(r"^\.\. LINENO (\S+)\#([0-9]+)$")