Warren Hinckle, a happily hard-drinking swashbuckler of San Francisco journalism who mixed leftist leanings with an everlasting contempt for the powerful, died early Thursday. Mr. Hinckle had been in declining health and died of complications from pneumonia at a hospital near his home in San Francisco, relatives said. From his groundbreaking days of editing the iconic liberal magazines Ramparts and Scanlan’s Monthly in the 1960s and ’70s to his reliably irreverent columns for newspapers, including The Chronicle and San Francisco Examiner, Mr.