ab: Disable nagle algorithm on sockets, it's not telnet. #440

Job	Run time
Empty APLOGNO() test	35s
Default	3m 55s
All-static modules	4m 0s
Prefork MPM, all-modules (except cgid)	4m 36s
Worker MPM, all-modules	4m 33s
Shared MPMs, all-modules	6m 6s
Event MPM, all-modules, mod_cgid only	4m 34s
Event MPM, all-modules, no CMSG_DATA	4m 36s
Default, all-modules + install	4m 49s
Default, all-modules, random test order	4m 29s
GCC 10 maintainer-mode w/-Werror, install + VPATH	3m 53s
All-modules, APR 1.7.4, APR-util 1.6.3	5m 46s
APR 1.8.x, APR-util 1.7.x	6m 47s
Pool-debug	8m 15s
Shared MPMs (event), pool-debug, SSL/TLS variants	11m 9s
Shared MPMs (worker), pool-debug, SSL/TLS variants	12m 31s
Shared MPMs (prefork), pool-debug, SSL/TLS variants	13m 26s
litmus WebDAV tests	2m 50s
Regenerate ap_expr	4m 23s
APR 1.7.4, APR-util 1.6.3, LDAP	4m 17s
APR trunk thread debugging	5m 43s
UBSan	7m 27s
ASan	7m 41s
ASan, pool-debug	7m 41s
HTTP/2 test suite	14m 15s
MOD_TLS test suite	7m 13s
	2h 45m 30s

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