branch master updated (1b846da -> 94d609a)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  1b846da   utils: Use '@' for separating package names and version 
numbers.
       new  f8187bd   hydra: Improve readability.
       new  49c4fd2   hydra: Completely disable grafting.
       new  94d609a   guix build: -S returns the replacement's source.

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:
 build-aux/hydra/gnu-system.scm |   57 +++++++++++++++++++++++-----------------
 guix/scripts/build.scm         |   19 +++++++------
 tests/guix-build.sh            |    9 ++++++
 3 files changed, 52 insertions(+), 33 deletions(-)