Supplemental four-way diff examples for the Git RFC patch series
diff: pair edited lines inside moved blocks.
Each page compares git diff --histogram,
--word-diff=plain, --color-moved=blocks, and
the prototype --word-diff-align output.
The real-world page includes examples from CPython and Git covering opcode/constant renumbering, repeated row rewrites, table-width spacing changes, and shell-test refactoring.