Log Message:
tex-lettrine{,-doc}: update to 2.21

-- Version 2.0 added informations about the requested and the final
   height of the initial.  These informations showed inaccuracies for
   some fancy fonts (cfr-initials f.i.), this is fixed in version 2.1
   (a new option "Vone" has been added for backward compatibility).
-- New option "refstring", see files demo.pdf or lettrine.pdf.

Version 2.2 takes advantage of the rollback mechanism recently
introduced by the LaTeX Team; thanks to Frank Mittelbach for
suggesting this change.
Consequently option Vone introduced in version 2.1 has been removed.

Fixed a long standing bug which occured when using
option "image" in optional config files.