Lintian tag information: quilt-build-dep-but-no-series-file (type: warning)

Description (from lintian-explain-tags)

Using quilt requires you to explicitly list all patches you want to apply
in debian/patches/series. This package build-depends on quilt, but does
not provide a patch list. You should either remove the quilt build
dependency or add a series file.

Note that an empty file cannot be represented in the Debian diff, so an
empty series file will disappear in the source package. If you intended
for the series file to be empty, add a comment line.

Visibility: warning
Show-Always: no
Check: debian/patches/quilt

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