dbus: Use correct idxset when getting sources

This fixes get_sources() which iterates wrong idxset when
getting source object paths in GetSources or GetAll.
man: pulse-cli-syntax: Document the "journal" log target
i18n: Update Polish translation
sink-input, source-output: Don't crash if format negotiation fails

A segfault was reported on this line:

pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data->sink)), -PA_ERR_BADSTATE);

After expanding the pa_sink_get_state() macro, the line looks like
this:

pa_return_val_if_fail(PA_SINK_IS_LINKED(data->sink->state), -PA_ERR_BADSTATE);

So data->sink was apparently NULL. That could happen if we try to fall
back to the default sink, but format negotiation fails.

This bug was introduced in commit
71816ecb7f81fe7a124cefa2258cfa64046908a1.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=74646
protocol-native: Don't enumerate unlinked sinks and sources

This makes sure that there is no window between pa_sink/source_new()
and _put() where enumerating sinks/sources causes an assert (several
calls in sink/source_get_info need a linked sink or source).
build-sys: Bump soname

Bumping from 0->3 since we missed bumping correctly for v4.99.{1,2,3}
Revert "protocol-native: Don't enumerate unlinked sinks and sources"

This reverts commit bd0bd9143f8159e5475b1295e30ec026ff0b6fef.
sconv, svolume: Fix compilation on 32-bit FreeBSD

Don't try to compile this code on 32-bit FreeBSD, it will error out complain
about registers only being available in 64-bit mode.
modules: Fix uninitialized variable in rtp-send

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
doc: Assorted spelling and grammar fixes for doxygen output

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
rtp-send: Use _cb suffix with callbacks
Make tests compile on FreeBSD

cpu_set_t is named cpuset_t on FreeBSD.
Add headers to allow for warning free compilation.