Use right option for excerpt text helper in tests, fix build

`excerpt` text helper uses `:radius`, not `line_width` (that is used by
`word_wrap` helper).

Also cleanup some whitespaces.

Author: carlosantoniodasilva

actionpack/lib/action_view/helpers/text_helper.rb

@@ -113,7 +113,7 @@ def highlight(text, phrases, *args)
         unless args.empty?
           ActiveSupport::Deprecation.warn "Calling highlight with a highlighter as an argument is deprecated. " \
           "Please call with :highlighter => '#{args[0]}' instead.", caller
-          
+
           options[:highlighter] = args[0] || '<strong class="highlight">\1</strong>'
         end
         options.reverse_merge!(:highlighter => '<strong class="highlight">\1</strong>')
@@ -161,7 +161,7 @@ def excerpt(text, phrase, *args)
         unless args.empty?
           ActiveSupport::Deprecation.warn "Calling excerpt with radius and omission as arguments is deprecated. " \
           "Please call with :radius => #{args[0]}#{", :omission => '#{args[1]}'" if args[1]} instead.", caller
-          
+
           options[:radius] = args[0] || 100
           options[:omission] = args[1] || "..."
         end

actionpack/test/template/text_helper_test.rb

@@ -130,10 +130,10 @@ def test_highlight
 
     assert_equal '   ', highlight('   ', 'blank text is returned verbatim')
   end
-  
+
   def test_highlight_old_api_is_depcrecated
     assert_deprecated("Calling highlight with a highlighter as an argument is deprecated. Please call with :highlighter => '<mark>\\1</mark>' instead.") do
-      highlight("This is a beautiful morning", "beautiful", '<mark>\1</mark>') 
+      highlight("This is a beautiful morning", "beautiful", '<mark>\1</mark>')
     end
   end
 
@@ -205,13 +205,13 @@ def test_excerpt
     assert_equal("...iful morning", excerpt("This is a beautiful morning", "morning", :radius => 5))
     assert_nil excerpt("This is a beautiful morning", "day")
   end
-  
+
   def test_excerpt_old_api_is_depcrecated
     assert_deprecated("Calling excerpt with radius and omission as arguments is deprecated. Please call with :radius => 5 instead.") do
-      excerpt("This is a beautiful morning", "morning", 5) 
+      excerpt("This is a beautiful morning", "morning", 5)
     end
     assert_deprecated("Calling excerpt with radius and omission as arguments is deprecated. Please call with :radius => 5, :omission => 'mor' instead.") do
-      excerpt("This is a beautiful morning", "morning", 5, "mor") 
+      excerpt("This is a beautiful morning", "morning", 5, "mor")
     end
   end
 
@@ -253,10 +253,10 @@ def test_excerpt_with_omission
   if RUBY_VERSION < '1.9'
     def test_excerpt_with_utf8
       with_kcode('u') do
-        assert_equal("...\357\254\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', :line_width => 8))
+        assert_equal("...\357\254\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', :radius => 8))
       end
       with_kcode('none') do
-        assert_equal("...\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', :line_width => 8))
+        assert_equal("...\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', :radius => 8))
       end
     end
   else
@@ -270,7 +270,7 @@ def test_excerpt_with_utf8
   def test_word_wrap
     assert_equal("my very very\nvery long\nstring", word_wrap("my very very very long string", :line_width => 15))
   end
-  
+
   def test_word_wrap_old_api_is_depcrecated
     assert_deprecated("Calling word_wrap with line_width as an argument is deprecated. Please call with :line_width => 15 instead.") do
       word_wrap("my very very very long string", 15)