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check: 
	echo "running usage test:"
	./git-log-calendar --year 2015 --css "../css/svg.css" .
#	 /git-log-calendar --year 2016 --css "../css/svg.css" .
	./git-log-calendar --css "../css/svg.css" .
	test -f img/git-activity-2015.svg
	test -f img/git-discord-3181.svg