- Update to version 2.29.5:
* fix: ignore link refs when looking for matches
* chore: drop `jdkato/regexp`
* fix: bump twine to 0.6.1

- Packaging improvements:
* Build PIE with pattern that may become recommended procedure:
%%ifnarch ppc64 GOFLAGS="-buildmode=pie" %%endif go build
A go toolchain buildmode default config would be preferable
but none exist at this time.
* Drop mod=vendor, go1.14+ will detect vendor dir and auto-enable
* Use %%name macro where applicable to normalize common lines
across Go app packages. Also makes renaming binary easier when
required to handle package name conflict. (forwarded request 1118031 from jfkw)