for non-standard things in the check directory

Maintainer: ‘Gerald Jurasinski <gerald.jurasinski@uni-rostock.de>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Gerald",
                      family = "Jurasinski",
                      role = c("aut", "cre"),
                      email = "gerald.jurasinski@uni-rostock.de"),
               person(given = "Franziska",
                      family = "Koebsch",
                      role = "aut"),
               person(given = "Anke",
                      family = "Guenther",
                      role = "aut"),
               person(given = "Sascha",
                      family = "Beetz",
                      role = "aut"))
as necessary.
Found the following files/directories:
  ‘flux.CH4.txt’
Maintainer: ‘Gerald Jurasinski <gerald.jurasinski@uni-rostock.de>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Gerald",
                      family = "Jurasinski",
                      role = c("aut", "cre"),
                      email = "gerald.jurasinski@uni-rostock.de"),
               person(given = "Franziska",
                      family = "Koebsch",
                      role = "aut"),
               person(given = "Anke",
                      family = "Guenther",
                      role = "aut"),
               person(given = "Sascha",
                      family = "Beetz",
                      role = "aut"))
as necessary.
Found the following files/directories:
  ‘flux.CH4.txt’
Found the following files/directories:
  ‘flux.CH4.txt’
Found the following files/directories:
  ‘flux.CH4.txt’
Found the following files/directories:
  ‘flux.CH4.txt’
Found the following files/directories:
  ‘flux.CH4.txt’