NewRotatingBuffer initalized with limit.

RotatingLogBuffer splits incoming logs based on the write number of lines are limited to a specified number, then cuts off the oldest entry Example: limit = 3 buf[0] = "hello" buf[1] = "world" buf[2] = "!" When another is written: limit = 3 buf[0] = "Lorum" buf[1] = "hello" buf[2] = "world".