Final head of the former 2.1 branch

1. db5ebc7 String method conversion. by Eric S. Raymond · 25 years ago
2. 45e2fbc Mass check-in after untabifying all files that need it. by Guido van Rossum · 27 years ago
3. 4ece95d #Added doc string. by Guido van Rossum · 28 years ago
4. 4f9f8e3 Make functionality more closely the same as what's implemented by default. by Guido van Rossum · 28 years ago
5. 501d0bb *** empty log message *** by Guido van Rossum · 28 years ago