This patch was adapted from -2.77-transmations-path-fix.patch for 2.80

Fix path for finding locale-specific files:
QCoreApplication::applicationDirPath() transforms to '/usr/bin'
and locale files are in '/usr/share/qt4/translations'

--- qt/app.cc
+++ qt/app.cc
@@ -98,7 +98,7 @@
   installTranslator (&qtTranslator);
 
   // install the transmission translator
-  appTranslator.load (QString (MY_CONFIG_NAME) + "_" + QLocale::system ().name (), QCoreApplication::applicationDirPath () + "/translations");
+  appTranslator.load (QString (MY_CONFIG_NAME) + "_" + QLocale::system ().name (), QLibraryInfo::location(QLibraryInfo::TranslationsPath) );
   installTranslator (&appTranslator);
 
   Formatter::initUnits ();