C# - Zeilennummern zum Text hinzufügen

/// <summary>
/// Adds the line numbers to text.
/// </summary>
/// <param name="text">The text.</param>
/// <returns></returns>
private string AddLineNumbersToText(string text)
{
    StringBuilder sb = new StringBuilder();
    string[] splitStrings = {"\r\n", "\r", "\n"};
    string[] lines = text.Split(splitStrings, StringSplitOptions.None);
    int lineCounter = 0;

    foreach (string s in lines)
    {
        sb.Append(lineCounter.ToString());
        sb.Append(":\t");
        sb.Append(s);
        sb.Append(Environment.NewLine);
        lineCounter++;
    }
    return sb.ToString();
}