81256bd fix extracting summaries from primary.xml

Authored and Committed by nphilipp 4 years ago
    fix extracting summaries from primary.xml
    
    The previous implementation using a SAX parser processed incomplete XML
    elements, which would e.g. change BZ component description to only the
    last couple characters of the RPM summary.
    
    In the course, consolidate to use only one the defusedxml element tree
    XML parser.
    
    fixes: #23
    
    Signed-off-by: Nils Philippsen <nils@redhat.com>