METALS-Copper cuts gains on firmer dollar, worries over Chinese demand

(Updates prices) By Manolo Serapio Jr MANILA, May 17 (Reuters) - London copper futures pared gains on Thursday as the U.S. dollar hovered near a five-month high against the euro and amid worries over slower demand in top copper user China. Three-month copper on the London Metal Exchange was up 0.3 percent at $6,844.50 a tonne by 0714 GMT, off a session-high of $6,866. ANZ analysts said in a note that the copper market appeared to be tightening, with the front-end of the curve mo