CRAN submission: see 0.8.4 #564

Job	Run time
R-CMD-check / macOS-latest (release)	14m 15s
R-CMD-check / windows-latest (devel)	25m 45s
R-CMD-check / windows-latest (release)	31m 18s
R-CMD-check / windows-latest (oldrel)	29m 22s
R-CMD-check / ubuntu-latest (devel)	25m 28s
R-CMD-check / ubuntu-latest (release)	19m 22s
R-CMD-check / ubuntu-latest (oldrel)	9m 29s
R-CMD-check / ubuntu-latest (oldrel-2)	11m 4s
R-CMD-check / ubuntu-latest (oldrel-3)	9m 45s
R-CMD-check / ubuntu-latest (3.6)	4m 5s
	2h 59m 53s

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