bigtable.hbase.TestRetryBehavior: testRpcWillRetryOnAbort[multi-get] failed

Note: #3700 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

----

commit: e0000c93b02cf139726bb1fca7b1b84259865695
buildURL: [Build Status](https://source.cloud.google.com/results/invocations/6efa5e84-23ee-49b7-9228-c07e580f7be7), [Sponge](http://sponge2/6efa5e84-23ee-49b7-9228-c07e580f7be7)
status: failed
Test output

expected: ABORTED

but was : DEADLINE_EXCEEDED

	at com.google.cloud.bigtable.hbase.TestRetryBehavior.testRpcWillRetryOnAbort(TestRetryBehavior.java:206)

Start with TestRetryBehavior.java at line 206 and inspect the failed test output from the linked build. Review the earlier related issue #3700 and determine why the multi-get retry test returns DEADLINE_EXCEEDED instead of ABORTED; done means the test behavior is understood and the retry test passes reliably.

Scritto dal modello di indicizzazione a partire dal testo della issue.