d6c4256 Added negative test case for --list-sources option

Authored and Committed by rcritten 3 years ago
    Added negative test case for --list-sources option
    
    Negative test test_append_arguments_to_list_sources added
    to --list-sources
    
    Signed-off-by: Kaleemullah Siddiqui <ksiddiqu@redhat.com>
    Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>