Linux

Fix h2 build broken in r1913019: #536

Job	Run time
Empty APLOGNO() test	35s
Default	4m 5s
All-static modules	4m 6s
Prefork MPM, all-modules (except cgid)	4m 56s
Worker MPM, all-modules	5m 38s
Shared MPMs, all-modules	6m 12s
Event MPM, all-modules, mod_cgid only	5m 42s
Event MPM, all-modules, no CMSG_DATA	4m 51s
Default, all-modules + install	5m 48s
Default, all-modules, random test order	4m 44s
GCC 10 maintainer-mode w/-Werror, install + VPATH	3m 57s
All-modules, APR 1.7.4, APR-util 1.6.3	6m 21s
APR 1.8.x, APR-util 1.7.x	8m 7s
Pool-debug	6m 50s
Shared MPMs (event), pool-debug, SSL/TLS variants	14m 44s
Shared MPMs (worker), pool-debug, SSL/TLS variants	11m 18s
Shared MPMs (prefork), pool-debug, SSL/TLS variants	10m 47s
litmus WebDAV tests	2m 54s
Regenerate ap_expr	4m 19s
APR 1.7.4, APR-util 1.6.3, LDAP	6m 51s
APR trunk thread debugging	5m 18s
UBSan	5m 51s
ASan	7m 52s
ASan, pool-debug	8m 8s
HTTP/2 test suite	13m 17s
MOD_TLS test suite	6m 2s
	2h 49m 13s

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