1 files changed, 6 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/dirty.rb b/activerecord/lib/active_record/dirty.rb
index 8fdc763292..d8355d2143 100644
--- a/activerecord/lib/active_record/dirty.rb
+++ b/activerecord/lib/active_record/dirty.rb
@@ -62,7 +62,7 @@ module ActiveRecord
       changed_attributes.keys
     end
 
-    # Map of changed attrs => [original value, new value]
+    # Map of changed attrs => [original value, new value].
     #   person.changes # => {}
     #   person.name = 'bob'
     #   person.changes # => { 'name' => ['bill', 'bob'] }
@@ -93,27 +93,27 @@ module ActiveRecord
     end
 
     private
-      # Map of change attr => original value.
+      # Map of change <tt>attr => original value</tt>.
       def changed_attributes
         @changed_attributes ||= {}
       end
 
-      # Handle *_changed? for method_missing.
+      # Handle <tt>*_changed?</tt> for +method_missing+.
       def attribute_changed?(attr)
         changed_attributes.include?(attr)
       end
 
-      # Handle *_change for method_missing.
+      # Handle <tt>*_change</tt> for +method_missing+.
       def attribute_change(attr)
         [changed_attributes[attr], __send__(attr)] if attribute_changed?(attr)
       end
 
-      # Handle *_was for method_missing.
+      # Handle <tt>*_was</tt> for +method_missing+.
       def attribute_was(attr)
         attribute_changed?(attr) ? changed_attributes[attr] : __send__(attr)
       end
 
-      # Handle *_will_change! for method_missing.
+      # Handle <tt>*_will_change!</tt> for +method_missing+.
       def attribute_will_change!(attr)
         changed_attributes[attr] = clone_attribute_value(:read_attribute, attr)
       end