git-svn-id: https://geuz.org/svn/gmsh/trunk@19547 59c8cabf-10d6-4a28-b43f-3936b85956c4
Fixed compliance to C++98 standard in MeshOptCommon

git-svn-id: https://geuz.org/svn/gmsh/trunk@19548 59c8cabf-10d6-4a28-b43f-3936b85956c4