Hide output from brew cask uninstall test

This test showed extraneous info in the test output

1 files changed, 3 insertions, 1 deletions

diff --git a/Library/Homebrew/test/cask/cli/uninstall_spec.rb b/Library/Homebrew/test/cask/cli/uninstall_spec.rb
index 714e652c7..036c47b5c 100644
--- a/Library/Homebrew/test/cask/cli/uninstall_spec.rb
+++ b/Library/Homebrew/test/cask/cli/uninstall_spec.rb
@@ -30,7 +30,9 @@ describe Hbc::CLI::Uninstall, :cask do
 
   it "tries anyway on a non-present Cask when --force is given" do
     expect {
-      Hbc::CLI::Uninstall.run("local-caffeine", "--force")
+      shutup do
+        Hbc::CLI::Uninstall.run("local-caffeine", "--force")
+      end
     }.not_to raise_error
   end