Short-seller Carson Block’s charge that Olam International Ltd. would fail, his first attack on a Singapore company, is a victory for shareholders after it made the commodity trader more responsive to investors. The backing from the government-owned investor Temasek Holdings, which now holds 24 percent of Olam, has buoyed shareholder confidence amid expectations that Olam would reduce spending and lower its $1 billion profit target in Thursday’s annual strategic review. It came after Olam sued the short-seller Carson Block, whose Muddy Waters firm likened the company to failed energy trader Enron Corp.  “Short-sellers act as a disciplining mechanism for firms to be more prudent in the way they operate,” said Director at the BNP Paribas Hedge Fund Centre at SMU, Professor of Finance Melvyn Teo. “It’s comforting to some investors that Temasek increased its holding of Olam.”