update opam_setup.sh
commit78b149533952812a75c328dee6c60da6e8603298
authorVincent Siles <vsiles@fb.com>
Wed, 5 Aug 2020 14:27:58 +0000 (5 07:27 -0700)
committerFacebook GitHub Bot <facebook-github-bot@users.noreply.github.com>
Wed, 5 Aug 2020 14:29:46 +0000 (5 07:29 -0700)
treec15d73ea12fcbd7f925fc29ed582cdb85955a825
parentd59f70f1a7c1b7197f9a39932d61d181c3ea4785
update opam_setup.sh

Summary: SOURCE_DIR might be used before it is set

Reviewed By: fredemmott

Differential Revision: D22942157

fbshipit-source-id: 26c69985f4f29e5ab750b75cba1094f29fb7f53b
hphp/hack/opam_setup.sh