From 750bb24a787dc6e4a13f2b842a3e8dcb8d5fb761 Mon Sep 17 00:00:00 2001
From: Xu Cheng <xucheng@me.com>
Date: Fri, 13 May 2016 14:39:16 +0800
Subject: [PATCH] brew.sh: use brew update in update-preinstall

Preinstall update should be performed in a separate process,
so it can maintain and close its own update lock.
---
 Library/brew.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/brew.sh b/Library/brew.sh
index 0469244b3b..5daeda3251 100644
--- a/Library/brew.sh
+++ b/Library/brew.sh
@@ -224,7 +224,7 @@ update-preinstall() {
     # Hide shellcheck complaint:
     # shellcheck source=/dev/null
     source "$HOMEBREW_LIBRARY/Homebrew/cmd/update.sh"
-    homebrew-update --preinstall
+    brew update --preinstall
   fi
 }