branch master updated (6619f9c -> babc2c8)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  6619f9c   gnu: Add eigensoft.
       new  a7a3b39   substitute: Gracefully handle trailing slashes in URLs.
       new  db8f6b3   challenge: Disable grafting.
       new  babc2c8   records: Improve reporting of invalid field specifiers.

The 3 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/records.scm            |   19 +++++++++++++++++--
 guix/scripts/challenge.scm  |   40 ++++++++++++++++++++++------------------
 guix/scripts/substitute.scm |    3 ++-
 tests/records.scm           |   29 ++++++++++++++++++++++++++++-
 4 files changed, 69 insertions(+), 22 deletions(-)