History of deepen 2 changes

In src/cli/sync.rs, lines 730–752 on 631fc8970bd0c661d21514be9ee52785edec89d9ad5b4704974e3ccbafc57626. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 730,752:src/cli/sync.rs.