message: Minor change in output message in linalg/sparsemat.cpp
diff: @@ -3056,7 +3056,7 @@ SparseMatrix &SparseMatrix::operator+=(const SparseMatrix &B)
  MFEM_ASSERT(height == B.height && width == B.width,
  "Mismatch of this matrix size and rhs. This height = "
  << height << ", width = " << width << ", B.height = "
  - << B.height << ", B.width = " << width);
  + << B.height << ", B.width = " << B.width);
  for (int i = 0; i < height; i++)
  {
  