target: Implement running OS version detection for FreeBSD (#5416)

* target: Implement OS version detection for FreeBSD

Fixes #4582

* freebsd version: handle errors explicitly
4b1a846471Jethro Nederhof committed on 5/25/2020, 12:52:13 AM· committed by GitHubparent07472fb
1 file changedLine totals unavailable