Fixes regexp perf

lib/wpscan/helper.rb

@@ -14,7 +14,7 @@ end
 # @return [ Symbol ]
 def classify_slug(slug)
   classified = slug.to_s.gsub(/[^a-z\d\-]/i, '-').gsub(/\-{1,}/, '_').camelize.to_s
-  classified = "D_#{classified}" if classified[0] =~ /\d/
+  classified = "D_#{classified}" if /\d/.match?(classified[0])
 
   classified.to_sym
 end

lib/wpscan/target/platform/wordpress.rb

@@ -29,7 +29,7 @@ module WPScan
           end
 
           homepage_res.html.css('meta[name="generator"]').each do |node|
-            return true if node['content'] =~ /wordpress/i
+            return true if /wordpress/i.match?(node['content'])
           end
 
           return true unless comments_from_page(/wordpress/i, homepage_res).empty?