lingnanyuan 88d9e6bd21 r-bookdown: Create new package. (#6504) ... * r-bookdown: Create new package. * r-bookdown: add version constraints.		2018-01-10 23:13:12 -06:00
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spack	r-bookdown: Create new package. (#6504)	2018-01-10 23:13:12 -06:00