By John O'Donnell and Axel Bugge SINTRA, Portugal (Reuters) - Celebrated among Europe's elite as a model of how to reform an economy after a debt binge, Portugal's enthusiasm for change has waned as Europe loses its appetite for further belt-tightening. With Greece's future in the euro uncertain, after its leftist government all but tore up a reform-for-aid deal, Europe's policy setters are putting an extra shine on other countries that were bailed out - in part to avoid a spillover. "l compared the case of Portugal to the film 'Match Point'," Jose Manuel Barroso, the former president of the European Commission, and one-time prime minister of Portugal, told Reuters, referring to Woody Allen's film.