88f85d5 Backport PR#769: handle None in place of string in buildNotification

Authored and Committed by mikem 6 years ago
    Backport PR#769: handle None in place of string in buildNotification
    
    https://pagure.io/koji/pull-request/769
    
    https://pagure.io/koji/issue/724
    buildNotification of wrapperRPM fails because of task["label"] is None
    
        
file modified
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