test: deduplicate T590

Test numbers are a concise way to communicate about tests and to remeber
them. Currently, there is one pait of duplicates:

T590-libconfig.sh
T590-thread-breakage.sh

Renumber the latter one to 592 since this keeps the alphabetic order and
leaves room in between.

Signed-off-by: Michael J Gruber <git@grubix.eu>
This commit is contained in:
Michael J Gruber 2021-06-29 17:29:20 +02:00 committed by David Bremner
parent 37f84d6d21
commit 1768b0c416