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Expected output for 'h5stat --links=20 -g h5stat_threshold.h5'
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Filename: h5stat_threshold.h5
Small groups (with 0 to 19 links):
	# of groups with 0 link(s): 1
	# of groups with 7 link(s): 1
	# of groups with 9 link(s): 1
	# of groups with 10 link(s): 1
	Total # of small groups: 4
Group bins:
	# of groups with 0 link: 1
	# of groups with 1 - 9 links: 2
	# of groups with 10 - 99 links: 1
	Total # of groups: 4