Final error message from retrier displays wait time with wrong text

[J7mbo]

Background

After retrying the maximum amount of times specified, the library adds it's own error to the error list before returning which states the wait time and the maximum number of retries allowed.

For example in where it is used in this app github.com/j7mbo/palmago-streetview, here's what we get when trying to connect to elastic search on running the app for the first time with no elasticsearch connection:

    * Head http://localhost:9200/palmago: dial tcp [::1]:9200: connect: connection refused
    * Head http://localhost:9200/palmago: dial tcp [::1]:9200: connect: connection refused
    * Head http://localhost:9200/palmago: dial tcp [::1]:9200: connect: connection refused
    * Tried calling: 'func() error' 1000000000 times but reached max retries of: 3

I'm pretty damned sure I don't have 1000000000 in my configuration somewhere!

Expected Output

Change the error message so that it says something like:

Tried calling: 'func() error' after waiting for 5 seconds but reached max retries of: 3

Ensure the time is formatted correctly to only be in seconds as this is human readable.

Testing

Ensure you add a test that proves this is working. Easiest thing to do would be to check for two numbers in the error message and assert they are what you expect.

I'm here to help so feel free to ask!