branch master updated (50f4ea1 -> 5ea69d9)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  50f4ea1   environment: Deal with single-entry search paths.
       new  a09b45d   build: Add and export procedure 'register-root*'.
       new  5ea69d9   system: Support the --root option in 'guix system'.

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:
 doc/guix.texi           |  5 +++++
 guix/scripts/build.scm  |  6 +++++-
 guix/scripts/system.scm | 31 ++++++++++++++++++++++++-------
 3 files changed, 34 insertions(+), 8 deletions(-)