Linux

fix header merging #1388

Job	Run time
Empty APLOGNO() test	43s
Default	3m 52s
All-static modules	3m 43s
Worker MPM, all-modules	4m 19s
Shared MPMs, all-modules	4m 25s
Event MPM, all-modules, mod_cgid fdpassing	4m 21s
Prefork MPM, all-modules (except cgid)	4m 46s
Shared MPMs, all-modules, 64-bit ARM	6m 52s
Default, all-modules + install	4m 13s
Event MPM, all-modules, mod_cgid w/o fdpassing	4m 18s
GCC 12 maintainer-mode w/-Werror, install + VPATH	3m 50s
Default, all-modules, random test order	4m 18s
APR 1.8.x, APR-util 1.7.x	6m 9s
Pool-debug	6m 15s
All-modules, APR 1.7.4, APR-util 1.6.3	4m 18s
Shared MPMs (worker), pool-debug, SSL/TLS variants	9m 31s
Shared MPMs (prefork), pool-debug, SSL/TLS variants	8m 44s
Shared MPMs (event), pool-debug, SSL/TLS variants	8m 46s
APR 1.7.x, APR-util 1.7.x, LDAP	6m 17s
APR 1.7.4, APR-util 1.6.3, LDAP	4m 37s
APR trunk thread debugging	4m 27s
litmus WebDAV tests	2m 30s
HTTP/2 test suite	6m 40s
ASan	6m 55s
ASan, pool-debug	7m 23s
	2h 12m 12s

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