Handle missing receipt on `brew install`.

For example if this is for a really old keg, keg where a user has
manually removed stuff or used `brew diy`.

1 files changed, 1 insertions, 1 deletions

diff --git a/Library/Homebrew/test/tab_spec.rb b/Library/Homebrew/test/tab_spec.rb
index fec390c28..1b0836c93 100644
--- a/Library/Homebrew/test/tab_spec.rb
+++ b/Library/Homebrew/test/tab_spec.rb
@@ -258,7 +258,7 @@ describe Tab do
     it "can create a Tab for a non-existant Keg" do
       f.prefix.mkpath
 
-      expect(subject.tabfile).to be nil
+      expect(subject.tabfile).to eq(f_tab_path)
     end
   end