message: fix test error on VS2013
diff: @@ -1129,7 +1129,7 @@ TEST(Core_InputOutput, FileStorage_DMatch)
  EXPECT_NO_THROW(fs << "d" << d);
  cv::String fs_result = fs.releaseAndGetString();
  -#if defined _MSC_VER && _MSC_VER <= 1700 /* MSVC 2012 and older */
  +#if defined _MSC_VER && _MSC_VER <= 1800 /* MSVC 2013 and older */
  EXPECT_STREQ(fs_result.c_str(), "%YAML:1.0\n---\nd: [ 1, 2, 3, -1.5000000000000000e+000 ]\n");
  #else
  EXPECT_STREQ(fs_result.c_str(), "%YAML:1.0\n---\nd: [ 1, 2, 3, -1.5000000000000000e+00 ]\n");
  @@ -1160,7 +1160,7 @@ TEST(Core_InputOutput, FileStorage_DMatch_vector)
  EXPECT_NO_THROW(fs << "dv" << dv);
  cv::String fs_result = fs.releaseAndGetString();
  -#if defined _MSC_VER && _MSC_VER <= 1700 /* MSVC 2012 and older */
  +#if defined _MSC_VER && _MSC_VER <= 1800 /* MSVC 2013 and older */
  EXPECT_STREQ(fs_result.c_str(),
  "%YAML:1.0\n"
  "---\n"
  @@ -1218,7 +1218,7 @@ TEST(Core_InputOutput, FileStorage_DMatch_vector_vector)
  EXPECT_NO_THROW(fs << "dvv" << dvv);
  cv::String fs_result = fs.releaseAndGetString();
  #ifndef OPENCV_TRAITS_ENABLE_DEPRECATED
  -#if defined _MSC_VER && _MSC_VER <= 1700 /* MSVC 2012 and older */
  +#if defined _MSC_VER && _MSC_VER <= 1800 /* MSVC 2013 and older */
  EXPECT_STREQ(fs_result.c_str(),
  "%YAML:1.0\n"
  "---\n"
  