be1819b282a8a0e26f9d269926ade07b67386355 reporting: make graph line markers work with tikz

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 432 | PASS: 430 | FAIL: 0 | XFAIL: 2 | XPASS: 0

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 430 | PASS: 428 | FAIL: 0 | XFAIL: 2 | XPASS: 0

A full log can be found on karaba in '/tmp/dynare-master-check-10ifEFYFAg.log'.