mozilla/rust — pull request #8858 by blake2-ppc (2013-08-29 15:13:32+00:00)
Title: std/extra: Two small bugfixes and one simplification

Fix a bug in `s.slice_chars(a, b)` that did not accept `a == s.len()`.

Fix a bug in `!=` defined for DList.

Also simplify NormalizationIterator to use the CharIterator directly instead of mimicing the iteration itself.