Linguist 'does not know the plural rules for Luganda'

    Problem
    Opened a .ts file which had its target language set to Luganda ('Ganda').
    Expected to be able to translate strings including their plural options.
    Instead the following happens:
       a. It complains that it does not know the plural rules for the language (attached picture 'does-not-know-plurals-rules.png'.)
       b. It does not allow translation for plurals (attached picture, 'unpatched-behaviour.png'.)

    Cause
    Missing entry for 'Ganda' in <somepath>/qt5/qttools/src/linguist/shared/numerus.cpp
    (Also noted that <somepath>/qt5/qtbase/util/locale_database/testlocales/localemodel.cpp is missing an entry for the same language)
     
     Fix
     Apply patch to <somepath>/qt5/qttools/src/linguist/shared/numerus.cpp. Attachment 'numerus-ganda-patch.txt'.
     It adds the language into the 'English style' section.
     (Patch also supplied for <somepath>/qt5/qtbase/util/locale_database/testlocales/localemodel.cpp. Attachment 'localemodel-ganda-patch.txt'.)