branch master updated (c918773 -> 1398a43)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  c918773   gnu: ffmpeg: Update to 3.3.3.
       new  03317cb   doc: Give an example of arguments for the 'run-vm.sh' 
script.
       new  75bddb1   services: cuirass: Set 'GIT_SSL_CAINFO' and 
'GIT_EXEC_PATH'.
       new  4892eb7   services: openssh: Add 'authorized-keys' field.
       new  1398a43   services: openssh: Extensions provide extra authorized 
keys.

The 4 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            | 49 ++++++++++++++++++++++--
 gnu/services/cuirass.scm |  7 ++++
 gnu/services/ssh.scm     | 96 +++++++++++++++++++++++++++++++++++++++---------
 3 files changed, 132 insertions(+), 20 deletions(-)