History of EmuControl::screenshot 2 changes

In client/emu_control.py, lines 138–145 on d44319b1e712ffc17c3b35abeba39046ba94fe6a5336d7b91065ac35b7dfa631. 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 138,145:client/emu_control.py.