Andrey Smirnov 16f1f6996e test: add retries to the test which verifies cluster version
It fails on AWS, need to figure out if it's transient failure or not.

While I was there, found lots of small bugs when endpoint is
unresponsive, or target nodes are unresponsive and fixed them.

In retry formatting added `\t` so that embedded errors are better
aligned in the output (same as multierror).

Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
2019-12-06 11:24:58 -08:00
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