branch master updated (a7b2022 -> 408ae72)

[guix-commits]

civodul pushed a change to branch master
in repository guix.

    from a7b2022  gnu: python-libmpsse: Update to 1.4.1.
     new 8cf7dd2  bootloader: grub: Refer to the native 'grub-mklayout' and 
font file.
     new d03001a  gexp: Compilers can now return lowerable objects.
     new 644cb40  gexp: Add 'let-system'.
     new 300a54b  utils: 'target-arm32?' & co. take an optional parameter.
     new 502f609  vm: Use 'let-system'.
     new 12adffd  linux-initrd: Silence Guile warnings.
     new 408ae72  services: shepherd: Silence Guile warnings.

The 7 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 .dir-locals.el              |   1 +
 doc/guix.texi               |  26 +++++++
 gnu/bootloader/grub.scm     |   4 +-
 gnu/services/shepherd.scm   |   6 +-
 gnu/system/linux-initrd.scm |  29 +++----
 gnu/system/vm.scm           |  15 ++--
 guix/gexp.scm               | 184 ++++++++++++++++++++++++++++++++------------
 guix/utils.scm              |  21 ++---
 tests/gexp.scm              |  54 +++++++++++++
 9 files changed, 257 insertions(+), 83 deletions(-)