diff --git a/lib/redmine/helpers/calendar.rb b/lib/redmine/helpers/calendar.rb
index 9b3c0e816..461f9b30c 100644
--- a/lib/redmine/helpers/calendar.rb
+++ b/lib/redmine/helpers/calendar.rb
@@ -1,34 +1,34 @@
-# redMine - project management software
-# Copyright (C) 2006-2007  Jean-Philippe Lang
+# Redmine - project management software
+# Copyright (C) 2006-2011  Jean-Philippe Lang
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
 # as published by the Free Software Foundation; either version 2
 # of the License, or (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 module Redmine
   module Helpers
-    
+
     # Simple class to compute the start and end dates of a calendar
     class Calendar
       include Redmine::I18n
       attr_reader :startdt, :enddt
-      
+
       def initialize(date, lang = current_language, period = :month)
         @date = date
         @events = []
         @ending_events_by_days = {}
         @starting_events_by_days = {}
-        set_language_if_valid lang        
+        set_language_if_valid lang
         case period
         when :month
           @startdt = Date.civil(date.year, date.month, 1)
@@ -44,24 +44,24 @@ module Redmine
           raise 'Invalid period'
         end
       end
-      
+
       # Sets calendar events
       def events=(events)
         @events = events
         @ending_events_by_days = @events.group_by {|event| event.due_date}
         @starting_events_by_days = @events.group_by {|event| event.start_date}
       end
-      
+
       # Returns events for the given day
       def events_on(day)
         ((@ending_events_by_days[day] || []) + (@starting_events_by_days[day] || [])).uniq
       end
-      
+
       # Calendar current month
       def month
         @date.month
       end
-      
+
       # Return the first day of week
       # 1 = Monday ... 7 = Sunday
       def first_wday
@@ -76,10 +76,10 @@ module Redmine
           @first_dow ||= (l(:general_first_day_of_week).to_i - 1)%7 + 1
         end
       end
-      
+
       def last_wday
         @last_dow ||= (first_wday + 5)%7 + 1
       end
-    end    
+    end
   end
 end