Function normalizeOutput

packages/just-bash/src/spec-tests/runner.ts:295–302

* Normalize output for comparison * - Strip comment lines (starting with #) - these are metadata in spec test STDOUT sections * - Trim trailing whitespace from each line * - Ensure consistent line endings * - Trim trailing newline

(output: string)

 * - Trim trailing newline
 */
function normalizeOutput(output: string): string {
  return output
    .split("\n")
    .filter((line) => !line.startsWith("#")) // Strip comment lines
    .map((line) => line.trimEnd())
    .join("\n")
    .replace(/\n+$/, "");
}

/**
 * Get summary statistics for test results