*) mod_proxy_http2: fix `X-Forward-Host` header to carry the correc… #491

Job	Run time
Empty APLOGNO() test	45s
Default	4m 28s
All-static modules	3m 50s
Prefork MPM, all-modules (except cgid)	4m 23s
Worker MPM, all-modules	4m 30s
Shared MPMs, all-modules	4m 33s
Event MPM, all-modules, mod_cgid only	5m 46s
Event MPM, all-modules, no CMSG_DATA	5m 21s
Default, all-modules + install	4m 41s
Default, all-modules, random test order	4m 29s
GCC 10 maintainer-mode w/-Werror, install + VPATH	3m 49s
All-modules, APR 1.7.4, APR-util 1.6.3	5m 2s
APR 1.8.x, APR-util 1.7.x	8m 48s
Pool-debug	9m 10s
Shared MPMs (event), pool-debug, SSL/TLS variants	12m 52s
Shared MPMs (worker), pool-debug, SSL/TLS variants	11m 28s
Shared MPMs (prefork), pool-debug, SSL/TLS variants	13m 4s
litmus WebDAV tests	2m 51s
Regenerate ap_expr	4m 28s
APR 1.7.4, APR-util 1.6.3, LDAP	6m 5s
APR trunk thread debugging	5m 6s
UBSan	5m 16s
ASan	7m 22s
ASan, pool-debug	9m 33s
HTTP/2 test suite	13m 3s
MOD_TLS test suite	6m 16s
	2h 46m 59s

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