Use `*` instead of `\+` in update-first-party.sh (#9143)
Summary:
This PR uses `*` instead of `\+` in `update-first-party.sh` because the BSD `sed` from macOS does not support `\+`, which is not POSIX standard.
Pull Request resolved: https://github.com/facebook/hhvm/pull/9143
Test Plan:
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https://github.com/facebook/hhvm/issues/9144 is created by the updated version of this script from macOS, which was able to update the hash with `*`, but not with `\+`.
Reviewed By: Wilfred
Differential Revision:
D38625879
Pulled By: Atry
fbshipit-source-id:
f9b60fe1763fe78039c8a35555215e3bd6424281