This script apparently runs fc-cache. Updating of the fontconfig cache files is now handled automatically by triggers, so running fc-cache from maintainer scripts is no longer necessary.
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 43a81d7. For merge requests, please use the latest version in the Lintian check scripts.