fix copy/paste bug in getWedge


git-svn-id: https://geuz.org/svn/gmsh/trunk@18257 59c8cabf-10d6-4a28-b43f-3936b85956c4
fix copy/pase bug in compareMQuadrangleLexicographic


git-svn-id: https://geuz.org/svn/gmsh/trunk@18258 59c8cabf-10d6-4a28-b43f-3936b85956c4