Explanation for binary files inside source package according to
  https://lists.debian.org/debian-devel/2013/09/msg00332.html

Files: data/air.rda
Documented: man/air.Rd
  Air quality data, rural background PM10 in Germany, daily averages 1998-2009

Files: data/fires.rda
Documented: man/fires.Rd
  Northern Los Angeles County Fires

 -- Andreas Tille <tille@debian.org>  Tue, 09 Jul 2019 10:59:37 +0200
