Fix InvalidAddressError message
This pull request will fix issue #60.
Fix to use the addr variable that exists instead of the non-existent @addr.
@ishikawa999 @knu
What is the status of this PR? It looks like https://github.com/ruby/ipaddr/commit/65a4c41f3794c6c421f7d7394af75872af27f16f was merged last week, so if I re-checkout from master or merging master, the build that is failing on this PR appears to be ready to go through.
The current status is CI failure left. As far as I recall, I approved this PR waiting for the tests to finish, and then some of them failed.
The failed actions cannot be rerun by now, so you'll have to push again to trigger a new run.
I guess Ruby 2.4 & 2.5 on macOS may be removed if they still fail again because those versions are too old.