Log Message:
tex-lettrine{,-doc}: update to 2.80

- The `\lettrine` command now checks whether the dropped cap will fit
  into the page. If the remaining vertical space is too short, a warning
  is issued.
- A new option `nextpage` has been added to automatically shift the whole
  paragraph to the top of next page in case the dropped cap doesn't fit
  into the page (option not recommended, see the documentation).