branch wip-container created (now a3cbf11)

[David Thompson]

davexunit pushed a change to branch wip-container
in repository guix.

        at  a3cbf11   scripts: Add 'container' subcommand.

This branch includes the following new commits:

       new  f9b0c92   build: syscalls: Add clone syscall wrapper.
       new  3abf8db   build: syscalls: Add setns syscall wrapper.
       new  42a65de   build: syscalls: Add additional mount flags.
       new  63edd22   build: syscalls: Add unmount flags.
       new  eabe5ee   build: syscalls: Add pivot-root.
       new  138bbc9   build: syscalls: Add mkdtemp!
       new  a3eb988   utils: Add call-with-temporary-directory.
       new  51532e1   gnu: build: Add Linux container module.
       new  4001e18   gnu: system: Move <file-system-mapping> into (gnu system 
file-systems).
       new  cc04d41   gnu: system: Move file-system->spec to (gnu system 
file-systems).
       new  cc0845d   gnu: system: Add Linux container module.
       new  da75fa4   gnu: system: Add Linux container file systems.
       new  3e0b532   scripts: system: Add 'container' subcommand.
       new  7035360   scripts: environment: Add --container option.
       new  a3cbf11   scripts: Add 'container' subcommand.

The 15 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.