History of push_delete 3 changes

In src/cli/sync.rs, lines 633–679 on 284fe47d98b95a8811d65bcf3c101dc26a0024a088c18fa52315c7dc97fb8242. 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 633,679:src/cli/sync.rs.