History of mount 1 change

In crates/flow/src/syscall.rs, lines 667–675 on c90dd8d5fc36bc3cc6d52a0c48b4b39becc2415c97602577838bfb850ebc826f. 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 667,675:crates/flow/src/syscall.rs.