https://git.ruby-lang.org/ruby.git/commit/?id=45bed2850e

From 45bed2850e5bf31c3528cf3559e76c3823bb4340 Mon Sep 17 00:00:00 2001
From: Kazuhiro NISHIYAMA <zn@m...>
Date: Mon, 19 Aug 2019 19:37:07 +0900
Subject: Reduce sub-shell and use `&&` instead of `;`


diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index b809010..1dcd992 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -20,7 +20,7 @@ jobs: https://github.com/ruby/ruby/blob/trunk/.github/workflows/macos.yml#L20
           sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
       - name: Install libraries
         run: |
-          brew update || (sleep 5; brew update) || (sleep 60; brew update)
+          brew update || { sleep 5 && brew update; } || { sleep 60 && brew update; }
           brew install gdbm gmp libffi openssl@1... zlib autoconf automake libtool readline
       # Not using official actions/checkout because it's unstable and sometimes doesn't work for a fork.
       - name: Checkout ruby/ruby
-- 
cgit v0.10.2


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