message: CR: Simplify regex
diff: @@ -81,7 +81,7 @@ export function ignoreReshuffle(): string {
  } catch (e) {
  return `Did not update ${gitIgnoreFile}`;
  }
  - const lines: string[] = initialContent.split(/\r\n|\n/g);
  + const lines: string[] = initialContent.split(/\r?\n/);
  const found = ignorePatterns.every((pat) => lines.some((line) => line && line.replace(/ +$/, '') === pat));
  if (found) {
  return `Did not need to update ${gitIgnoreFile}`;
  