CANADA STOCKS-TSX retreats as investors brace for jobs report

(Adds details, comments from fund manager; updates prices) * TSX falls 56.90 points, or 0.39 percent, to 14,402.21 * Eight of 10 main index sectors decline * Gold-mining shares slip with bullion price By John Tilak TORONTO, April 3 (Reuters) - Canada's main stock index fell on Thursday as sluggish U.S. economic data increased investor anxiety ahead of an upcoming jobs report and a drop in bullion hurt gold-mining shares. The Toronto market's weakness followed gains in ea