[phobos] [D-Programming-Language/phobos] a40422: Add missing imports

[GitHub via phobos]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: a40422b2aa959174c7b2c15afa46a20ef4b3b06a
      https://github.com/D-Programming-Language/phobos/commit/a40422b2aa959174c7b2c15afa46a20ef4b3b06a
  Author: k-hara <k.hara.pg at gmail.com>
  Date:   2015-01-07 (Wed, 07 Jan 2015)

  Changed paths:
    M std/datetime.d
    M std/random.d
    M std/stdio.d

  Log Message:
  -----------
  Add missing imports


  Commit: 0fce06d48a578c5651f9b1744c9336b61efc02c7
      https://github.com/D-Programming-Language/phobos/commit/0fce06d48a578c5651f9b1744c9336b61efc02c7
  Author: H. S. Teoh <hsteoh at quickfur.ath.cx>
  Date:   2015-01-06 (Tue, 06 Jan 2015)

  Changed paths:
    M std/datetime.d
    M std/random.d
    M std/stdio.d

  Log Message:
  -----------
  Merge pull request #2846 from 9rnsr/fix12359

Add missing imports


Compare: https://github.com/D-Programming-Language/phobos/compare/c3845c1723b7...0fce06d48a57