[phobos] [D-Programming-Language/phobos] be227e: Fixed some doc warnings

[GitHub via phobos]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: be227ef59542b9c15eec74c30d00ef7e50315700
      https://github.com/D-Programming-Language/phobos/commit/be227ef59542b9c15eec74c30d00ef7e50315700
  Author: Lionello Lunesu <lio+git at lunesu.com>
  Date:   2015-11-17 (Tue, 17 Nov 2015)

  Changed paths:
    M std/conv.d
    M std/file.d
    M std/stdio.d
    M std/string.d

  Log Message:
  -----------
  Fixed some doc warnings


  Commit: 4b57ad66e6bf6dfd1b31ef0b2e0a74a2413e5313
      https://github.com/D-Programming-Language/phobos/commit/4b57ad66e6bf6dfd1b31ef0b2e0a74a2413e5313
  Author: Brian Schott <briancschott at gmail.com>
  Date:   2015-11-16 (Mon, 16 Nov 2015)

  Changed paths:
    M std/conv.d
    M std/file.d
    M std/stdio.d
    M std/string.d

  Log Message:
  -----------
  Merge pull request #3816 from lionello/doc_warnings

Fixed some doc warnings


Compare: https://github.com/D-Programming-Language/phobos/compare/3b9046198433...4b57ad66e6bf