Refactor `summarize_change()` #531

All 858 tests pass, 11 skipped in 1m 14s

1 files ±0 84 suites ±0 1m 14s ⏱️ -2s
869 tests ±0 858 ✅ +1 11 💤 ±0 0 ❌ - 1
1 865 runs - 1 1 170 ✅ ±0 695 💤 ±0 0 ❌ - 1

Results for commit f3324d0. ± Comparison against earlier commit bba6778.