fixup! ossl_cmp_msg_check_update(): improve diagnostics of checking e… #1984

Job	Run time
check_update	1m 19s
basic_gcc	4m 54s
check_docs	53s
check-ansi	2m 29s
basic_clang	5m 6s
minimal	2m 18s
no-deprecated	4m 31s
self-hosted (freebsd-13.2)	1s
self-hosted (ubuntu-arm64-22.04)	1s
address_ub_sanitizer	10m 20s
non-caching	14m 31s
no-shared-macos	5m 9s
no-shared-ubuntu	3m 49s
enable_non-default_options	3m 57s
external-test-cf-quiche	3m 46s
external-test-pyca (1.51.0, 3.9)	7m 52s
external-tests	11m 0s
full_featured	5m 14s
fuzz_tests	2m 55s
legacy	3m 43s
memory_sanitizer	19m 22s
no-legacy	4m 46s
out-of-readonly-source-and-install-macos	10m 27s
out-of-readonly-source-and-install-ubuntu	6m 35s
threads_sanitizer	4m 57s
	2h 19m 55s

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