By Susan Mathew April 5 (Reuters) – Most Latin American currencies firmed against a slightly stronger dollar on Friday, while Brazil’s real weakened as President Jair Bolsonaro appealed to leaders of five big centrist parties to back his pension reform plan. The real slipped 0.1 percent, having lost as much as 0.36 percent earlier in the session, but was on course for its best week since early February. Late Thursday, Bolsonaro asked the leaders for their support of the pension proposal, resorting to the traditional political methods he had condemned during the election campaign. The outlook for the real has weakened for the first time since Bolsonaro took office at the start of the year amid doubts about the pension reform drive, a Reuters