e1b9941 Exclude __pycache__ files from flatpak build

Authored and Committed by sbergmann a year ago
    Exclude __pycache__ files from flatpak build
    
    This caused the LibreOffice flatpak build to fail, so follow the common
    workaround of just excluding for now any __pycache__ files from flatpak builds,
    where they are apparently not generated.
    
        
file modified
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