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As some SSDs are still seeing performance degredation when
reaching 85% usage the default value of 5% seems a little low.

Set this to 15% by default.

This semi-reverts 8973790e.

Everything which is an absolute filename marked with <filename></filename>
lands in the index, unless noindex= attribute is present. Should make
it easier for people to find stuff when they are looking at a file on
disk.

Various formatting errors in manpages are fixed, kernel-install(1) is
restored to formatting sanity.

When rsyncing to fd.o, rsync would fail on symlinks in man/.
We don't care about the times too much anyway. rsync will
set times to "now", which is fine, since modification times
don't matter much outside of each uploader's machine anyway.

The point is to complete all steps of the transfer, so Python
documentation is properly updated.

The same old story as d3b9e0ff: those two use libsystemd-shared, and
in turn, some functions in libsystemd-shared use libsystemd-daemon.
The fact that *those* functions are used neither by the python modules
in question nor pam_systemd isn't always enough. Currently, I'm seeing
linking failures with -flto. The result of adding
libsystemd-daemon-internal to the list of linked libraries should be
harmless, with no change in size or final link requirements.

I'm assuming that it's fine if a _const_ or _pure_ function
calls assert. It is assumed that the assert won't trigger,
and even if it does, it can only trigger on the first call
with a given set of parameters, and we don't care if the
compiler moves the order of calls.

Instead of storing bootchart sample data in arrays, this patch moves
storage to linked lists so that there is no more limit on samples.

This patch also fixes parsing of /proc/<pid>/smaps in kernels > 3.7.

Bootchart has a help option. For the sake of consistency, this patch
adds it to the man page.

Also, the TODO is updated. Bootcharts were added to the journal in
commit c4d58b0b.

If we get as far as successfully starting the container, nspawn should
inherit the exit status of the child container process as its own.

hexchar,unhexchar,octchar,unoctchar,decchar,undecchar are
all const functions.

Add missing property and remove duplicate properties already in
src/core/dbus-kill.h

cg_get_machine_path is modified to include the escaped machine name
+ ".nspawn" if the machine argument is nonnull.

The brackets in the _arguments description of udevadm monitor need to be
escaped.

Since it must be NULL terminated.

units: add an easy-to-use unit template file systemd-nspawn@.service for running containers as system services

We generally document the suggested paths, not the paths possible in
weird, non-standard setups. We do this in order to not confuse
administrators/users unnecessarily and to push people to install things
into the same directories on all distributions.

We are PID 1 after all, the really basic building block of the OS.
Unlike for an app there's very little benefit in being entirely
relocatable.

cgroup: make cg_pid_get_path() work properly for co-mounted controllers and normalized named hierarchies

Also, always accept both our simple hexdump syntax and UUID syntax.

- Consistent use of $VAR vs ${VAR}
- Consistent use of && vs 'if'
- Add error checking to some places
- Consistent error messages ("Can't" vs "Cannot", etc.)
- Function declarations at the top
- Miscellaneous adjustments

Related to https://bugzilla.redhat.com/show_bug.cgi?id=957135.

This was missed in commit 7027ff61 and
means that the --machine option would work but not its shorthand, -M.