WASHINGTON—The Justice Department’s inspector general said Thursday that it did not find evidence that FBI agents shared inside information about the Hillary Clinton email investigation with Rudy Giuliani. The question of whether anyone had leaked information to Giuliani arose after the former New York mayor said in an Oct. 26, 2016, television appearance that then-candidate Donald Trump had “some pretty big surprises” in the coming days. Two days later, James Comey, the FBI director at the time, revealed that the FBI would reopen the Clinton email investigation following the discovery of new emails. The inspector general looked into whether anyone had improperly tipped off Giuliani, and more broadly examined contacts between FBI officials and reporters during the course of the investigation into whether Clinton had mishandled classified information on her personal email server. According to a report issued Thursday, Giuliani told the watchdog office that he had not received any …