Merge r1919532, r1919533 from trunk: #1157

Job	Run time
Empty APLOGNO() test	28s
Default	4m 43s
All-static modules	4m 32s
Prefork MPM, all-modules (except cgid)	5m 36s
Worker MPM, all-modules	5m 29s
Shared MPMs, all-modules	5m 4s
Event MPM, all-modules, mod_cgid fdpassing	5m 52s
Event MPM, all-modules, mod_cgid w/o fdpassing	6m 17s
Default, all-modules + install	5m 12s
Default, all-modules, random test order	5m 40s
GCC 10 maintainer-mode w/-Werror, install + VPATH	2m 57s
All-modules, APR 1.7.4, APR-util 1.6.3	5m 33s
APR 1.8.x, APR-util 1.7.x	5m 46s
Pool-debug	6m 3s
Shared MPMs (event), pool-debug, SSL/TLS variants	8m 6s
Shared MPMs (worker), pool-debug, SSL/TLS variants	9m 28s
Shared MPMs (prefork), pool-debug, SSL/TLS variants	8m 58s
litmus WebDAV tests	3m 27s
APR 1.7.4, APR-util 1.6.3, LDAP	5m 54s
APR 1.7.x, APR-util 1.7.x, LDAP	5m 59s
APR trunk thread debugging	5m 39s
ASan	6m 37s
ASan, pool-debug	6m 55s
HTTP/2 test suite	5m 32s
	2h 15m 47s

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