This .desktop file does either not contain a "Keywords" entry or it does not contain any keywords not already present in the "Name" or "GenericName" entries.
.desktop files are organized in key/value pairs (similar to .ini files). "Keywords" is the name of the entry/key in the .desktop file containing keywords relevant for this .desktop file.
The desktop-file-validate tool in the desktop-file-utils package is useful for checking the syntax of desktop entries.
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 ce6249d. For merge requests, please use the latest version in the Lintian check menu-format.