[phobos] [D-Programming-Language/phobos] 4a2163: fix issue 15914

[GitHub via phobos]

  Branch: refs/heads/stable
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: 4a21631a0f35c75b2e22031248245f362c1a021d
      https://github.com/D-Programming-Language/phobos/commit/4a21631a0f35c75b2e22031248245f362c1a021d
  Author: Basile Burg <basile.b at gmx.com>
  Date:   2016-04-14 (Thu, 14 Apr 2016)

  Changed paths:
    M std/getopt.d

  Log Message:
  -----------
  fix issue 15914


  Commit: def9039f4252df4d17770513e53ee4bdcb20ce61
      https://github.com/D-Programming-Language/phobos/commit/def9039f4252df4d17770513e53ee4bdcb20ce61
  Author: Vladimir Panteleev <github.private at thecybershadow.net>
  Date:   2016-04-15 (Fri, 15 Apr 2016)

  Changed paths:
    M std/getopt.d

  Log Message:
  -----------
  Merge pull request #4189 from BBasile/issue-15914-stable

fix issue 15914 - [REG 2.071] getopt doesn't accept anymore a character for a bool option


Compare: https://github.com/D-Programming-Language/phobos/compare/3cfa582c7e8b...def9039f4252