Lintian tag information: source-is-missing (type: error)

Description (from lintian-explain-tags)

The source of the following file is missing. Lintian checked a few
possible paths to find the source, and did not find it.

Please repack your package to include the source or add it to
"debian/missing-sources" directory.

Please note, that very-long-line-length-in-source-file tagged files are
likely tagged source-is-missing. It is a feature not a bug.

Visibility: error
Show-Always: no
Check: files/source-missing

Show affected packages