Log message:
archivers: Replace RMD160 checksums with BLAKE2s checksums

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

Could not be committed due to merge conflict:
devel/py-traitlets/distinfo

The following distfiles were unfetchable (note: some may be only fetched
conditionally):

./devel/pvs/distinfo pvs-3.2-solaris.tgz
./devel/eclipse/distinfo eclipse-sourceBuild-srcIncluded-3.0.1.zip

Log message:
devel: Remove SHA1 hashes for distfiles

Log message:
devel: Add lua-cov

LuaCov is a simple coverage analyzer for Lua scripts. When a Lua script is
run with the luacov module loaded, it generates a stats file with the number
of executions of each line of the script and its loaded modules. The luacov
command-line script then processes this file generating a report file which
allows one to visualize which code paths were not traversed, which is useful
for verifying the effectiveness of a test suite.