History of program 1 change

In crates/backdrop/src/gl.rs, lines 104–114 on v0.9.20. 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 104,114:crates/backdrop/src/gl.rs.