move requires into run

tools/exploit/pattern_create.rb

@@ -40,11 +40,6 @@ module PatternCreate
         raise OptionParser::MissingArgument, '-l <length> is required'
       end
 
-      require 'msfenv'
-      require 'msf/core'
-      require 'msf/base'
-      require 'rex/text'
-
       options[:sets] = nil unless options[:sets]
 
       options
@@ -62,8 +57,12 @@ module PatternCreate
     end
 
     def run
-      pattern = Rex::Text.pattern_create(@opts[:length], @opts[:sets])
-      puts pattern
+      require 'msfenv'
+      require 'msf/core'
+      require 'msf/base'
+      require 'rex/text'
+
+      puts Rex::Text.pattern_create(@opts[:length], @opts[:sets])
     end
   end
 end