DUBAI, June 28 (Reuters) - An Iranian appeals court has confirmed an eight-year, eight-month sentence for jailed French national Benjamin Briere on spying charges, one of his Iranian lawyers, Saeid Dehghan, tweeted on Tuesday. Briere was arrested in Iranin May 2020 after flying a helicam - a remote-controlled mini-helicopter used to obtain aerial or motion images - in the desert near the ...