qt4-linguist-tools 4:4.8.7+dfsg-20ubuntu2 (s390x binary) in ubuntu focal

 Qt is a cross-platform C++ application framework. Qt's primary feature
 is its rich set of widgets that provide standard GUI functionality.
 .
 This package contains lupdate and lrelease. lupdate is a command line tool
 that finds the translatable strings in the specified source, header and
 Qt Designer interface files, and produces or updates .ts translation files.
 lrelease is a command line tool that produces QM files out of TS files.