ed9d7f6 Use universal_newlines when running other commands

Authored and Committed by lsedlar 6 years ago
    Use universal_newlines when running other commands
    
    This will automatically convert the output to unicode/str and we will
    not have to worry about decoding ourselves.
    
    Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
    
        
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