3.12.2
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* Updates to GNOME Help (麻婧, Yingqi Gou, Jim Campbell, Ekaterina Gerasimova)
* Updates to System Admin Guide (Ekaterina Gerasimova, Petr Kovar,
  Shaun McCance, David King, Jana Svarova, Jim Campbell)
* Updated translations:
  de        (Benjamin Steinwender)
  el        (Dimitris Spingos)
  hu        (Gábor Kelemen)
  ru        (Stas Solovey)