configuration for getting last error instead of all

[odedva]

Hi there,
I would find it beneficial if I could directly get the last error that was returned from the retry-able function - i will work on a pr of that, just wanted to here you out if this something that make sense to you...
implemented here:
#14

[JaSei]

Hi, they make sense for me, in most cases are all errors same.

[JaSei]

#14