whitespace-before-parameters comment (#6103)

crates/ruff/src/rules/pycodestyle/rules/logical_lines/whitespace_before_parameters.rs

@@ -7,6 +7,25 @@ use ruff_python_parser::token_kind::TokenKind;
 use crate::checkers::logical_lines::LogicalLinesContext;
 use crate::rules::pycodestyle::rules::logical_lines::LogicalLine;
 
+/// ## What it does
+/// Checks for extraneous whitespace immediately after an open parenthesis
+/// or bracket.
+///
+/// ## Why is this bad?
+/// According to [PEP 8], open parentheses and brackets should not be followed
+/// by any trailing whitespace.
+///
+/// ## Example
+/// ```python
+/// spam (1)
+/// ```
+///
+/// Use instead:
+/// ```python
+/// spam(1)
+/// ```
+///
+/// [PEP 8]: https://peps.python.org/pep-0008/#pet-peeves
 #[violation]
 pub struct WhitespaceBeforeParameters {
     bracket: TokenKind,

scripts/check_docs_formatted.py

@@ -66,6 +66,7 @@ KNOWN_FORMATTING_VIOLATIONS = [
     "useless-semicolon",
     "whitespace-after-open-bracket",
     "whitespace-before-close-bracket",
+    "whitespace-before-parameters",
     "whitespace-before-punctuation",
 ]