Log message:
textproc/diffr: update to 0.1.5

 - Fix build on 32 bits platforms.
 - Fix macOS pipeline.
 - Highlight trailing whitespaces.
 - trailing whitespace: fix for whitespace-only lines.
 - Improve handling of "\ No newline at end of file" message.
 - diffr: fix bad highlighting. (#59)
 - Tidy code related to --line-numbers.
 - Improve encapsulation of iterator types.
 - line-number: fix parser to allow for multiple - ranges.
 - Add an option to print colorized output as html.
 - Use imperative-style code rather than recursion. (#77)
 - main.rs: improve coloring contrast of white letters

Log message:
textproc/diffr: Reset maintainer for stagnated project.

Log message:
textproc: Replace RMD160 checksums with BLAKE2s checksums

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

Unfetchable distfiles (fetched conditionally?):
./textproc/convertlit/distinfo clit18src.zip

Log message:
textproc: Remove SHA1 hashes for distfiles

Log message:
textproc/diffr: simplify Makefile

Log message:
diffr: fix minor typo in DESCR

Log message:
textproc/diffr: import package

Reviewing changes involves reading diffs. Sometimes, a line-oriented
presentation of changes is not precise enough, especially when changes
involve long lines or very similar consecutive lines.

This program processes such diffs, and output them (in the console)
with additional diff information on top of the unified diff format,
using text attributes.

It works hunk by hunk, recomputing the diff on a word-by-word basis.