Test

Fix DO droplet link bug. #3086

Job	Run time
multiple-arch-aarch64	5m 46s
cygwin64-cache	2m 55s
utest-regression-blackbox-test	4m 59s
multiple-arch-armv7	6m 16s
cygwin64	9m 25s
fast	1s
build-ubuntu16	1m 32s
build-cross-arm	2m 35s
build-ubuntu18	1m 37s
build-centos7	2m 12s
build-ubuntu20	1m 45s
build-cross-aarch64	2m 17s
coverage	2m 32s
multiple-arch-amd64	1m 22s
test-done	1s
	45m 15s

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