xds/resolver: Add missing double quote in json SC (#3232)
xds/resolver: Add missing double quote in json SC (#3232)


stanley-cheung/grpc-go,menghanl/grpc-go,stanley-cheung/grpc-go,menghanl/grpc-go,grpc/grpc-go,dfawley/grpc-go,dfawley/grpc-go,grpc/grpc-go