WEEKLY HONOREDSACRAMENTO. Calif. (AP) —Last month, the Point Reyes Light was a tiny struggling weekly, circulation 2.700, doggedly carrying out its continuing investigation of an alternate lifestyle group in relative . obsecuritv. But then came the 1979 Pulitzer Prize. rf*Gov. Edmund Brown Jr. honored the newspaper and promised to look into the Light sstories about Synanon He joked with Dave and Cathy Mitchell, publishers of-the weekly and said that winning the Pulitzer for public service validated his philosophy: “Small is beautiful. California is first.’* Brown said the Light “is a California institution. I don' t know if they were before, but they are now.”