ElidedLabel: fix doxygen string
ElidedLabel: fix doxygen string

This should have been part of 5b1b8ec45418dc88255266c7c7249c1c8d11d0d9.

Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui