Version 2.17.91
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- Show an error message instead of closing the program if the image 
  loading has failed (Claudio Saavedra) [#399988]
- Fix crash when exiting EOG (Kees Cook) [#389755]
- Several code cleanups and memory leak fixes (Felix Riemann, Claudio Saavedra)
- Fix crash when closing EOG while printing (Felix Riemann) [#404708]
- Change launcher description to match UI review (Lucas Rocha) [#383436]
- Updated manual translations: Vasiliy Faronov (ru), AP Singh Alam (pa),
  David Lodge (en_GB)
- Updated translations: Daniel Nylander (sv), David Lodge (en_GB), 
  Kjartan Maraas (nb), Theppitak Karoonboonyanan (th), Pema Geyleg (dz),
  Priit Laes (et), Josep Puigdemont i Casamajó (ca), Leonardo Fontenelle (pt_BR),
  Jakub Friedl (cs), Stéphane Raimbault (fr), Philip Kerling (de), 
  Ihar Hrachyshka (be), Ilkka Tuohela (fi), Changwoo Ryu (ko), Djihed Afifi (ar),
  Duarte Loreto (pt), Alexander Shopov (bg)