occured -> occurred. Closes #5559.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4604 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/lib/active_record/base.rb

@@ -1848,7 +1848,7 @@ module ActiveRecord #:nodoc:
         rescue SyntaxError => err
           self.class.read_methods.delete(attr_name)
           if logger
-            logger.warn "Exception occured during reader method compilation."
+            logger.warn "Exception occurred during reader method compilation."
             logger.warn "Maybe #{attr_name} is not a valid Ruby identifier?"
             logger.warn "#{err.message}"
           end

activerecord/lib/active_record/fixtures.rb

@@ -308,7 +308,7 @@ class Fixtures < YAML::Omap
             end
           end
         rescue Exception=>boom
-          raise Fixture::FormatError, "a YAML error occured parsing #{yaml_file_path}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n  #{boom.class}: #{boom}"
+          raise Fixture::FormatError, "a YAML error occurred parsing #{yaml_file_path}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n  #{boom.class}: #{boom}"
         end
       elsif File.file?(csv_file_path)
         # CSV fixtures

activesupport/lib/active_support/dependencies.rb

@@ -163,7 +163,7 @@ class Exception #:nodoc:
 
   def describe_blame
     return nil if blamed_files.empty?
-    "This error occured while loading the following files:\n   #{blamed_files.join "\n   "}"
+    "This error occurred while loading the following files:\n   #{blamed_files.join "\n   "}"
   end
 
   def copy_blame!(exc)

activesupport/lib/active_support/whiny_nil.rb

@@ -30,7 +30,7 @@ class NilClass
     def raise_nil_warning_for(klass = nil, selector = nil, with_caller = nil)
       message = "You have a nil object when you didn't expect it!"
       message << "\nYou might have expected an instance of #{klass}." if klass
-      message << "\nThe error occured while evaluating nil.#{selector}" if selector
+      message << "\nThe error occurred while evaluating nil.#{selector}" if selector
       
       raise NoMethodError, message, with_caller || caller
     end