Ziggurat `with-retry` macro retries it n+1 times instead of n

[shubham7saxena]

https://github.com/gojek/ziggurat/blob/master/src/ziggurat/retry.clj#L16

we check for (if-not (zero? count)) . for example I say, 5 retries. it will decrement the retry-count in the order of 5,4,3,2,1,0 (six retries) and on the sixth retry, it will throw the exception.

we could check for positivity of counter and then throw the exception

[kartik7153]

1 time is valid try and then it retries for x number of times.

Closing this issue.