CRAN submission: see 0.8.4 #558

Job	Run time
R-CMD-check / macOS-latest (release)	9m 46s
R-CMD-check / windows-latest (devel)	10m 59s
R-CMD-check / windows-latest (release)	10m 31s
R-CMD-check / windows-latest (oldrel)	10m 34s
R-CMD-check / ubuntu-latest (devel)	13m 37s
R-CMD-check / ubuntu-latest (release)	11m 18s
R-CMD-check / ubuntu-latest (oldrel)	12m 14s
R-CMD-check / ubuntu-latest (oldrel-2)	12m 14s
R-CMD-check / ubuntu-latest (oldrel-3)	3m 59s
R-CMD-check / ubuntu-latest (3.6)	4m 26s
	1h 39m 38s

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