The extended description (the lines after the first line of the "Description:" field) is only one or two lines long. The extended description should provide a user with enough information to decide whether they want to install this package, what it contains, and how it compares to similar packages. One or two lines is normally not enough to do this.
For more information please consult:
The tag is present in Lintian version
That is the most recent version we know about.
We use semantic versions.
The patch number is a commit step indicator relative to the
release tag in our Git
You can find the detection logic for this version at commit d219a5a. For merge requests, please use the latest version in the Lintian check fields/description.