correct the sha64 of the yosemite formula
correct the sha64 of the yosemite formula

stanley-cheung/homebrew-grpc,jtattermusch/homebrew-grpc,mwoytowich/homebrew-grpc,tbetbetbe/homebrew-grpc,grpc/homebrew-grpc,w4-sjcho/homebrew-grpc,mwoytowich/homebrew-grpc,vmlinz/homebrew-grpc,stanley-cheung/homebrew-grpc,jtattermusch/homebrew-grpc,vmlinz/homebrew-grpc,grpc/homebrew-grpc,w4-sjcho/homebrew-grpc,tbetbetbe/homebrew-grpc