v1.7.2

Compare with 1.7.1

Fixes

• -version now reports the module version for go install pkg@version builds — such builds carry no vcs.* build settings (they compile from the module cache, which has no VCS context), so the fallback found nothing and reported the claustrum-dev sentinel even for a binary installed at a real tag; it now falls back to debug.BuildInfo.Main.Version, keeping the precedence -ldflags > vcs.revision > module version > sentinel, so downstream version checks that parse -version can confirm a go install build's version. (#161)