capList->denied += ' ';
capList->denied->Append(' ');
AppendCapability(nsHashKey *aKey, void *aData, void *capListPtr){    CapabilityList* capList = (CapabilityList*)capListPtr;    PRInt16 value = (PRInt16)(PRInt32)aData;    nsCStringKey* key = (nsCStringKey *)aKey;    if (value == nsIPrincipal::ENABLE_GRANTED)    {        capList->granted->Append(key->GetString(), key->GetStringLength());        capList->granted += ' ';    }    else if (value == nsIPrincipal::ENABLE_DENIED)    {        capList->denied->Append(key->GetString(), key->GetStringLength());        capList->denied += ' ';    }    return PR_TRUE;}