Lintian tag information: info-document-missing-dir-entry (type: error)

Description (from lintian-explain-tags)

This info document has no directory entry. This is text between
START-INFO-DIR-ENTRY and END-INFO-DIR-ENTRY lines which is copied into the
dir file in /usr/share/info by install-info. The best solution is to add
lines like:

@dircategory Software development
@direntry
* foo: (foo).               Foo creator and editor
@end direntry

to the texinfo source so that the generated info file will contain an
appropriate entry. You will have to ensure that the build process builds
new info files rather than using ones built by upstream.

Visibility: error
Show-Always: no
Check: documentation/texinfo

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