pytest: Fine tuning for LogLevel vs -v^n. #409

Job	Run time
Empty APLOGNO() test	34s
Default	4m 6s
All-static modules	5m 23s
Prefork MPM, all-modules (except cgid)	4m 56s
Worker MPM, all-modules	4m 33s
Shared MPMs, all-modules	4m 43s
Event MPM, all-modules, mod_cgid only	5m 4s
Event MPM, all-modules, no CMSG_DATA	4m 39s
Default, all-modules + install	5m 56s
Default, all-modules, random test order	4m 26s
GCC 10 maintainer-mode w/-Werror, install + VPATH	3m 48s
All-modules, APR 1.7.4, APR-util 1.6.3	4m 40s
APR 1.8.x, APR-util 1.7.x	7m 10s
Pool-debug	8m 19s
Shared MPMs (event), pool-debug, SSL/TLS variants	11m 45s
Shared MPMs (worker), pool-debug, SSL/TLS variants	12m 31s
Shared MPMs (prefork), pool-debug, SSL/TLS variants	11m 15s
litmus WebDAV tests	2m 38s
Regenerate ap_expr	5m 39s
APR 1.7.4, APR-util 1.6.3, LDAP	4m 15s
APR trunk thread debugging	5m 40s
UBSan	6m 37s
ASan	7m 58s
ASan, pool-debug	9m 30s
HTTP/2 test suite	13m 49s
MOD_TLS test suite	7m 47s
	2h 47m 41s

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