Log Message:
(audio/pavucontrol) Updated 3.0 to 4.0

   Tue Mar 5 2019:
   [11]Version 4.0 released. Changes:
     * There can now be only one pavucontrol window open at a time. Trying
       to start pavucontrol for a second time brings the first window to
       foreground.
     * Added a "Show volume meters" checkbox to the Configuration tab.
       Disabling the volume meters reduces CPU use.
     * Improve the use of space (remove useless margins and paddings).
     * Use a more appropriate icon for the channel lock button.
     * Better channel label layout, prevents volume sliders from getting
       unaligned.
     * Maximum latency offset increased from 2 to 5 seconds to accommodate
       AirPlay devices that often have higher latency than 2 seconds (this
       is not that useful on newer PulseAudio versions, though, because
       the latency is reported much more accurately than before).
     * New --version command line option.
     * New translations: Chinese (Taiwan), Croatian, Korean, Norwegian
       Nynorsk, Lithuanian, Valencian.
     * Updated translations: Finnish, French, German, Italian, Japanese,
       Polish, Swedish.
     * Dropped support for Gtk+ 2.
     * Bumped the minimum supported libpulse version to 5.0.
     * Improved compatibility with newer Glade versions.