Fix rbenv-vars on FreeBSD by avoiding process substitution (#20)
Fix rbenv-vars on FreeBSD by avoiding process substitution (#20)

Fixes #19

Co-authored-by: Mislav Marohnić <46f1a0bd5592a2f9244ca321b129902a06b53e03@mislav.net>

sstephenson/rbenv-vars,rbenv/rbenv-vars