fix typo of Enumeration#overridding_change?

git-svn-id: http://svn.redmine.org/redmine/trunk@13056 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/enumeration.rb

@@ -104,7 +104,7 @@ class Enumeration < ActiveRecord::Base
   end
 
   # Does the +new+ Hash override the previous Enumeration?
-  def self.overridding_change?(new, previous)
+  def self.overriding_change?(new, previous)
     if (same_active_state?(new['active'], previous.active)) && same_custom_values?(new,previous)
       return false
     else

app/models/project.rb

@@ -252,10 +252,10 @@ class Project < ActiveRecord::Base
       parent_activity = TimeEntryActivity.find(activity['parent_id'])
       activity['name'] = parent_activity.name
       activity['position'] = parent_activity.position
-      if Enumeration.overridding_change?(activity, parent_activity)
+      if Enumeration.overriding_change?(activity, parent_activity)
         project_activity = self.time_entry_activities.create(activity)
         if project_activity.new_record?
-          raise ActiveRecord::Rollback, "Overridding TimeEntryActivity was not successfully saved"
+          raise ActiveRecord::Rollback, "Overriding TimeEntryActivity was not successfully saved"
         else
           self.time_entries.
             where(["activity_id = ?", parent_activity.id]).