fix some code styling issues

spec/lib/wpscan/web_site_spec.rb

@@ -17,7 +17,7 @@ describe 'WebSite' do
     )
   end
 
-  describe "#new" do
+  describe '#new' do
     its(:url) { is_expected.to  be === 'http://example.localhost/' }
   end
 
@@ -68,14 +68,14 @@ describe 'WebSite' do
 
   describe '#xml_rpc_url' do
     it 'returns the xmlrpc url' do
-      expect(web_site.xml_rpc_url).to be === "http://example.localhost/xmlrpc.php"
+      expect(web_site.xml_rpc_url).to be === 'http://example.localhost/xmlrpc.php'
     end
   end
 
   describe '#has_xml_rpc?' do
     it 'returns true' do
       stub_request(:get, web_site.xml_rpc_url).
-        to_return(status: 200, body: "XML-RPC server accepts POST requests only")
+        to_return(status: 200, body: 'XML-RPC server accepts POST requests only')
 
       expect(web_site).to have_xml_rpc
     end

spec/lib/wpscan/wp_target_spec.rb

@@ -149,7 +149,7 @@ describe WpTarget do
 
     after :each do
       allow(wp_target).to receive_messages(wp_content_dir: 'wp-content')
-      stub_request_to_fixture(url: wp_target.debug_log_url(), fixture: @fixture)
+      stub_request_to_fixture(url: wp_target.debug_log_url, fixture: @fixture)
       expect(wp_target.has_debug_log?).to be === @expected
     end