AMSTERDAM — The Dutch government said Thursday it has issued a European arrest warrant for one of the most prominent unpunished Nazi war crimes suspects – a Dutch collaborator convicted in the Netherlands but living in freedom in Germany.The 88-year-old Klaas Carel Faber was convicted in 1947 of complicity in 22 murders and for aiding the enemy in time of war for helping the Netherlands’ Nazi occupiers during World War II, Dutch prosecutors said.He was given a death sentence that was later commuted to life in prison, but he escaped and fled to Germany in 1952, where he was granted citizenship.