[phobos] [D-Programming-Language/phobos] dcf18a: fix Issue 14105 - strideImpl fails for 0xFF

[GitHub via phobos]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: dcf18a0d20a8019fc5a374afd58d99d10c642a82
      https://github.com/D-Programming-Language/phobos/commit/dcf18a0d20a8019fc5a374afd58d99d10c642a82
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-02-02 (Mon, 02 Feb 2015)

  Changed paths:
    M std/utf.d

  Log Message:
  -----------
  fix Issue 14105 - strideImpl fails for 0xFF

- bsr(0) returns an undefined result


  Commit: e65a331ebdd375603b92209fb693d02561eb0055
      https://github.com/D-Programming-Language/phobos/commit/e65a331ebdd375603b92209fb693d02561eb0055
  Author: Steven Schveighoffer <schveiguy at yahoo.com>
  Date:   2015-02-02 (Mon, 02 Feb 2015)

  Changed paths:
    M std/utf.d

  Log Message:
  -----------
  Merge pull request #2951 from MartinNowak/fix14105

fix Issue 14105 - strideImpl fails for 0xFF


Compare: https://github.com/D-Programming-Language/phobos/compare/91e37fe0b6b3...e65a331ebdd3