code: function fixLines (line) {
    // Node 11+ are fine
    if (nodeMajorV > 10) return line
  
    // Work around a bug in Node 10's V8 --preprocess -j that breaks strings containing \\
    if (nodeMajorV === 10) {
      // Look for backslashes that aren't escaping a unicode character code, like \\u01a2
      // Small risk of false positives e.g. is C:\\Users\\u2bfab\\ unicode, or a U2 fan?
      // So, restrict to basic multilingual (4 char) only. No hieroglyphs or ancient Mayan.
      const startPath = line.search(/\\(?!u[0-9A-Fa-f]{4})/)
      if (startPath === -1) return line
  
      // Replace any \\ that's not part of a unicode escape character
      const replaceRegex = /\\(?!u[0-9A-Fa-f]{4})/g
      // \u005c is the unicode escape for the \ char
      return line.slice(0, startPath) + line.slice(startPath).replace(replaceRegex, '\\u005c')
    }
  
    if (nodeMajorV < 10) {
      // In regexs, Node 8 (and 9) hard-escapes unicode and doubles \\ to \\\\
      if (!line.match(/^code-creation,RegExp/)) return line
  
      // Normal buffer decoding, String.normalize() etc doesn't work here, brute force needed
      const escapedUnicode = line.match(/(\\u[0-9A-Fa-f]{4})+/g)
      if (escapedUnicode) {
        for (const match of escapedUnicode) {
          line = line.replace(match, JSON.parse(`"${match}"`))
        }
      }
      return line.replace(/\\\\/g, '\\')
    }
  }
docs: Fixes node-version-specific issues with isolate log text