Lint for SPDX license field should probably work on PKGBUILD files
The SPDX license field is being checked on packages, but many people also/only run namcap
on their PKGBUILD files. With the license field error only being thrown after a build it's potentially a very long round-trip to fix an issue such as a typo or otherwise invalid license identifier. It would be much handier if the license field was also checked from the PKGBUILD for a quick round trip with feedback before firing off a build.
Is this possible to add without too much effort?