branch master updated (b02733d -> dc673fa)

[Mathieu Lirzin]

mthl pushed a change to branch master
in repository guix.

      from  b02733d   gnu: libosinfo: Fix substitute fetching for usb.ids.
       new  5c6a30c   git download: Remove redundant argument in 
'gexp->derivation' call.
       new  dc673fa   derivations: Make <derivation> record datatype immutable.

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/derivations.scm  |   17 +++++------------
 guix/git-download.scm |    3 +--
 2 files changed, 6 insertions(+), 14 deletions(-)