title: gem install openssl conflict?
body: <p>When I run <code>gem install bundler</code> I get this error. How do I fix it?</p>
  
  <pre><code>gem install bundler
  ERROR:  Loading command: install (LoadError)
          dlopen(.rbenv/versions/2.6.3/lib/ruby/2.6.0/x86_64-darwin18/openssl.bundle, 9): Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
    Referenced from: /.rbenv/versions/2.6.3/lib/ruby/2.6.0/x86_64-darwin18/openssl.bundle
    Reason: image not found - .rbenv/versions/2.6.3/lib/ruby/2.6.0/x86_64-darwin18/openssl.bundle
  ERROR:  While executing gem ... (NoMethodError)
      undefined method `invoke_with_build_args' for nil:NilClass
  </code></pre>