Log Message:
pkgtools/pkglint: update to 22.4.0

Changes since 22.3.2:

Numeric comparisons of _PYTHON_VERSION generate an error since that
variable can have the value 'none', which is not numeric.  Furthermore,
the variable is from the internal namespace and thus should not be used
by packages at all.

Warnings about COMPILER_RPATH_FLAG no longer suggest different and
conflicting replacements.

Cleanup: Handling of doc/CHANGES was moved to changes.go, and since
go1.19.4, comments are formatted differently.