From b4c268e3c59f011f2de7ba0f1a466d54a4ccd97c Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Fri, 2 Mar 2018 17:21:17 +0000
Subject: [PATCH] migrator: overwrite by default.

This avoids getting into an invalid state which will and does break
for users.
---
 Library/Homebrew/migrator.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/migrator.rb b/Library/Homebrew/migrator.rb
index 8664d474be..3ccf2f23c0 100644
--- a/Library/Homebrew/migrator.rb
+++ b/Library/Homebrew/migrator.rb
@@ -288,7 +288,8 @@ class Migrator
     new_keg.remove_linked_keg_record if new_keg.linked?
 
     begin
-      new_keg.link
+      mode = OpenStruct.new(overwrite: true)
+      new_keg.link(mode)
     rescue Keg::ConflictError => e
       onoe "Error while executing `brew link` step on #{newname}"
       puts e