under "Using the must-gather tool" in the procedure - step 2 has both commands gathering data for 24 hours. 
in previous versions (4.9) the first command only grabs data for 1 hour. 

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     both commands do not gather data for 24 hours - the first only gathers for 1 hour per earlier documentation. if this changed, we should not have 2 commands for the same timeframe.