History of submodule_add 2 changes

In src/cli/sync.rs, lines 536–553 on be451356e3ef50e074343ccafba1c1174e261c2bfe9c5ff13d6a26ba884ee4d4. 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 536,553:src/cli/sync.rs.