History of gc 5 changes

In src/cli/workspace.rs, lines 1044–1079 on ff1a64f81c1c23dfa03b467649595a81929df3857b4281d1029acc6a825065b1. 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 1044,1079:src/cli/workspace.rs.