code cleanup in opt_int while we're here

lib/msf/core/opt_int.rb

@@ -1,36 +1,28 @@
 # -*- coding: binary -*-
 
 module Msf
-
-###
-#
-# Integer option.
-#
-###
-class OptInt < OptBase
+  ###
+  #
+  # Integer option.
+  #
+  ###
+  class OptInt < OptBase
     def type
-    return 'integer'
+      'integer'
     end
 
     def normalize(value)
-    if value.to_s.match(/^0x[a-fA-F\d]+$/)
+      if value.to_s.match?(/^0x[a-fA-F\d]+$/)
         value.to_i(16)
       elsif value.present?
         value.to_i
-    else
-      nil
       end
     end
 
     def valid?(value, check_empty: true)
       return false if check_empty && empty_required_value?(value)
-
-    if value.present? and not value.to_s.match(/^0x[0-9a-fA-F]+$|^-?\d+$/)
-      return false
+      return false if value.present? && !value.to_s.match?(/^0x[0-9a-fA-F]+$|^-?\d+$/)
+      super
     end
-
-    return super
   end
 end
-
-end