fix flake8 config for flake8 6.0.0 (#668)

see PyCQA/flake8#1750

setup.cfg

@@ -12,22 +12,41 @@ tag_prefix = ""
 exclude = __init__.py,versioneer.py,s3fs/tests/
 max-line-length = 95
 ignore =
-    E20,        # Extra space in brackets
-    E231,E241,  # Multiple spaces around ","
-    E26,        # Comments
-    E4,         # Import formatting
-    E721,       # Comparing types instead of isinstance
-    E731,       # Assigning lambda expression
-    E121,       # continuation line under-indented for hanging indent
-    E126,       # continuation line over-indented for hanging indent
-    E127,       # continuation line over-indented for visual indent
-    E128,       # E128 continuation line under-indented for visual indent
-    E702,       # multiple statements on one line (semicolon)
-    W503,       # line break before binary operator
-    E129,       # visually indented line with same indent as next logical line
-    E116,       # unexpected indentation
-    F811,       # redefinition of unused 'loop' from line 10
-    F841,       # local variable is assigned to but never used
-    E741        # Ambiguous variable names
-    W504,       # line break after binary operator
-    E501,       # line too long (leave it to black!)
+    # Extra space in brackets
+    E20,
+    # Multiple spaces around ","
+    E231,E241,
+    # Comments
+    E26,
+    # Import formatting
+    E4,
+    # Comparing types instead of isinstance
+    E721,
+    # Assigning lambda expression
+    E731,
+    # continuation line under-indented for hanging indent
+    E121,
+    # continuation line over-indented for hanging indent
+    E126,
+    # continuation line over-indented for visual indent
+    E127,
+    # E128 continuation line under-indented for visual indent
+    E128,
+    # multiple statements on one line (semicolon)
+    E702,
+    # line break before binary operator
+    W503,
+    # visually indented line with same indent as next logical line
+    E129,
+    # unexpected indentation
+    E116,
+    # redefinition of unused 'loop' from line 10
+    F811,
+    # local variable is assigned to but never used
+    F841,
+    # Ambiguous variable names
+    E741
+    # line break after binary operator
+    W504,
+    # line too long (leave it to black!)
+    E501,