branch master updated (4cc5e52 -> 5063dea)

[guix-commits]

rekado pushed a change to branch master
in repository guix.

      from  4cc5e52   machine: Use 'become-command'.
       new  c586f42   build-system/r: bioconductor-uri: Take optional package 
type.
       new  5063dea   import: cran: Support experiment and annotation packages.

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 guix/build-system/r.scm | 20 ++++++++++++++------
 guix/import/cran.scm    | 46 +++++++++++++++++++++++++++++++++-------------
 2 files changed, 47 insertions(+), 19 deletions(-)