Bug 158262 - Windows Sync UI is inconistent
    
    The dialog used to create a winsync agreement is not consistent
    in the way that the labels are used.  The label used for the port
    number is abbreviated to "Port Num" and has a trailing colon where
    the rest of the labels are not abbreviated and do not have trailing
    colons.  This patch fixes the port number label to be consistent
    with the rest of the labels.  The gbc fill contraint needed to be
    changed to get the now longer label to display correctly.