website.rake in gecoder-with-gecode-1.1.1.1

- old
+ new

@@ -16,11 +16,11 @@
 module WebsiteRakeHelpers
   module_function
 
   # Remove generated documentation.
   def clobber
-    rm_rf 'doc/output'
-    rm_rf 'doc/tmp'
+    FileUtils.rm_rf 'doc/output'
+    FileUtils.rm_rf 'doc/tmp'
   end
 
   # Generates the website with webgen.
   def webgen
     Dir.chdir 'doc' do