[phobos] [D-Programming-Language/phobos] c25b7d: improve error message in ndslice

[GitHub via phobos]

  Branch: refs/heads/9il-patch-1
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: c25b7d5c7160bdcb9aaa8a01a963f52e585c5b98
      https://github.com/D-Programming-Language/phobos/commit/c25b7d5c7160bdcb9aaa8a01a963f52e585c5b98
  Author: Ilya Yaroshenko <ilyayaroshenko at gmail.com>
  Date:   2016-01-15 (Fri, 15 Jan 2016)

  Changed paths:
    M std/experimental/ndslice/slice.d

  Log Message:
  -----------
  improve error message in ndslice