Lintian tag information: dir-or-file-in-etc-opt (type: error)

Description (from lintian-explain-tags)

Debian packages should not install into /etc/opt, because it is reserved
for add-on software.

Please refer to /opt : Add-on application software packages (Section 3.13)
in the Filesystem Hierarchy Standard for details.

Visibility: error
Show-Always: no
Check: files/hierarchy/standard

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