382181f97d86027314a4e039bb21668f72fde101 doc: fix example (cherry picked from commit 74260b94879dbe0d61d3b06b7b22ecf43b20eb22)

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 413 | PASS: 411 | FAIL: 0 | XFAIL: 2 | XPASS: 0

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 411 | PASS: 409 | FAIL: 0 | XFAIL: 2 | XPASS: 0

A full log can be found on karaba in '/tmp/dynare-4.4-check-pMmvbDLa9W.log'.