[moses-smt/mosesdecoder] ce1b65: Fix memory leak.

[GitHub <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/moses-smt/mosesdecoder
  Commit: ce1b650b53750d13147bace099f3fedf787d6236
      https://github.com/moses-smt/mosesdecoder/commit/ce1b650b53750d13147bace099f3fedf787d6236
  Author: Tetsuo Kiso <tet...@is...>
  Date:   2012-12-20 (Thu, 20 Dec 2012)

  Changed paths:
    M mert/sentence-bleu.cpp

  Log Message:
  -----------
  Fix memory leak.

The object was allocated with new, but it was not deleted.
This may not be a serious problem because the program mostly runs
a short time. However, it is not a good practice.