Log message:
benchmarks: fix the ordering of common package variables

Log message:
benchmarks: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

Log message:
benchmarks: Remove SHA1 hashes for distfiles

Log message:
benchmarks: align variable assignments

pkglint -Wall -F --only aligned --only indent -r

No manual corrections.

Log message:
Replaced $(ROUND) with ${CURLY} variable references.

This has been a pkglint warning for several years now, and pkglint can even
fix it automatically. And it did for this commit.

Only in lang/mercury, two passes of autofixing were necessary because there
were nested variables.

Log message:
Comment out dead sites.

Log message:
Add SHA512 digests for distfiles for benchmarks category

Problems found with existing distfile for superpi:
	distfiles/super_pi-20030927/super_pi.tar.gz
No changes were made to the superpi/distinfo file.

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.
distfiles/eagle-lin32-7.4.0.run

Log message:
"echo -e" is not portable, use printf to generate horizontal tabulation.
Reported by Mikhail Danilov on IRC.

Log message:
"user-destdir" is default these days

Log message:
gnuplot isn't used, remove it completely.
Use common point to depend on MPI (mk/mpi.buildlink3.mk).