Rubocopification (unless ... else => if ... else, encoding, Multilines in {} block)

spec/lib/wpscan/wp_vulnerability_spec.rb

@@ -6,14 +6,14 @@ describe '#vulnerabilities' do
   let(:location_url) { 'http://example.localhost/' }
   let(:fixtures_dir) { SPEC_FIXTURES_WPSCAN_WP_PLUGIN_DIR + '/vulnerabilities' }
   let(:vulns_file) { fixtures_dir + '/plugin_vulns.xml' }
-  let(:wp_plugin) {
+  let(:wp_plugin) do
     WpPlugin.new(
       base_url:   location_url,
       name:       'spec-plugin',
       path:       'plugins/spec-plugin/',
       vulns_file: vulns_file
     )
-  }
+  end
 
 
   it 'should return an empty array when no vulnerabilities are found' do