Merge pull request #10588 from Bo98/git-test-fix

test/utils/git_spec: fix cherry pick test with older git

Library/Homebrew/test/utils/git_spec.rb

@@ -58,6 +58,7 @@ describe Utils::Git do
     end
 
     it "aborts when cherry picking an existing hash" do
+      ENV["GIT_MERGE_VERBOSITY"] = "5" # Consistent output across git versions
       expect {
         described_class.cherry_pick!(HOMEBREW_CACHE, file_hash1)
       }.to raise_error(ErrorDuringExecution, /Merge conflict in README.md/)