update test cases.

tests/004-mat-save-load.phpt

@@ -13,18 +13,18 @@ require_once 'includes/assert.php';
 $file_name = 'test_mat_data';
 
 $mat = Arma\CxDMat::fromString('(1 2) (3 4); (5 6) (7 8)');
-batch_assert('saving/loading of `Arma\\Mat`',
+batch_assert('saving of `Arma\\Mat`',
     [true, $mat->save($file_name, Arma\FileType::ARMA_BINARY)]
 );
 
 $mat1 = Arma\CxDMat::init();
 $handle = fopen($file_name, 'r');
-batch_assert('saving/loading of `Arma\\Mat`',
+batch_assert('loading of `Arma\\Mat`',
     [true, $mat1->load($handle, Arma\FileType::ARMA_BINARY)]
 );
 
 $eq_mat = $mat->equals($mat1);
-batch_assert('saving/loading of `Arma\\Mat`',
+batch_assert('loading of `Arma\\Mat`',
     [1, $eq_mat->min()],
     [1, $eq_mat->max()]
 );