included examples for negative ordinalize

activesupport/lib/active_support/core_ext/integer/inflections.rb

@@ -4,10 +4,13 @@ class Integer
   # Ordinalize turns a number into an ordinal string used to denote the
   # position in an ordered sequence such as 1st, 2nd, 3rd, 4th.
   #
-  #   1.ordinalize    # => "1st"
-  #   2.ordinalize    # => "2nd"
-  #   1002.ordinalize # => "1002nd"
-  #   1003.ordinalize # => "1003rd"
+  #  1.ordinalize     # => "1st"
+  #  2.ordinalize     # => "2nd"
+  #  1002.ordinalize  # => "1002nd"
+  #  1003.ordinalize  # => "1003rd"
+  #  -11.ordinalize   # => "-11th"
+  #  -1001.ordinalize # => "-1001st"
+  #
   def ordinalize
     ActiveSupport::Inflector.ordinalize(self)
   end