History of EmuControl::step 1 change

In client/emu_control.py, lines 102–104 on 67065eaa1a138cefe18e364919754202087d7336486d2f423fda5d2fc8f1aaeb. 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 102,104:client/emu_control.py.