// NOTE: This is not true RFC822 anymore. The use of the characters
// '/', '+', and '=' is no bueno when the ID will be used as part of a URL.
// '.', '_', and '-' have been used instead
The translation that's implemented is '/' -> '_', '+' -> '.', and '='
-> '-'.
Make the last line of the comment:
// '_', '.', and '-' have been used instead
Jeremy