Fix for routes task

This commit fixes formatting issue for `rake routes` task, when a section is shorter than a header.

actionpack/CHANGELOG.md

@@ -1,3 +1,7 @@
+*   Fix formatting for `rake routes` when a section is shorter than a header
+
+    *Sıtkı Bağdat*
+    
 *   Take a hash with options inside array in #url_for
 
     Example:

actionpack/lib/action_dispatch/routing/inspector.rb

@@ -179,7 +179,8 @@ module ActionDispatch
 
       private
         def draw_section(routes)
-          name_width, verb_width, path_width = widths(routes)
+          header_lengths = ['Prefix', 'Verb', 'URI Pattern'].map(&:length)
+          name_width, verb_width, path_width = widths(routes).zip(header_lengths).map(&:max)
 
           routes.map do |r|
             "#{r[:name].rjust(name_width)} #{r[:verb].ljust(verb_width)} #{r[:path].ljust(path_width)} #{r[:reqs]}"

actionpack/test/dispatch/routing/inspector_test.rb

@@ -101,7 +101,7 @@ module ActionDispatch
 
         assert_equal [
           "Prefix Verb URI Pattern Controller#Action",
-          "root GET / pages#main"
+          "  root GET  /           pages#main"
         ], output
       end