INSTALLATION_DIRS, as well as all occurrences of ${PREFIX}/man with
${PREFIX}/${PKGMANDIR}.
Fixes PR 35265, although I did not use the patch provided therein.
as benchmarks/nettest (originally in net).
The nettest and nettestd commands perform client and server
performance tests for various types of interprocess communication.
These tests time the data throughput of pipes and UNIX domain, TCP,
and UDP socket connections.
Supplied by Brian Ginsbach in PR#18985. Thanks!
