Make each commit entries h3

Author: nobu

lib/rdoc/parser/changelog.rb

@@ -226,13 +226,13 @@ def parse_entries
     def create_entries entries
       # git log entries have no strictly itemized style like the old
       # style, just assume Markdown.
-      entries.map do |entry, (author, date, body)|
-        list = RDoc::Markup::List.new(:NOTE)
-        author = RDoc::Markup::Paragraph.new(author)
-        list << RDoc::Markup::ListItem.new(date, author)
-        RDoc::Markdown.parse(body).parts.each {|b| list << b}
-        list
+      out = []
+      entries.each do |entry, (author, date, body)|
+        title = RDoc::Markup::Heading.new(3, "#{date} #{author}")
+        out << title
+        out.concat RDoc::Markdown.parse(body).parts
       end
+      out
     end
   end
 end

test/rdoc/test_rdoc_parser_changelog.rb

@@ -349,16 +349,12 @@ def test_scan_git
       blank_line,
       head(2, '2021-01-21'),
       blank_line,
-      list(:NOTE,
-        item('2021-01-21 01:03:52 +0900',
-          para('git <svn-admin@ruby-lang.org>')),
-        list(:BULLET, item(nil, para('2021-01-21 [ci skip]')))),
+      head(3, '2021-01-21 01:03:52 +0900 git <svn-admin@ruby-lang.org>'),
+      list(:BULLET, item(nil, para('2021-01-21 [ci skip]'))),
       head(2, '2021-01-20'),
       blank_line,
-      list(:NOTE,
-        item('2021-01-20 01:58:26 +0900',
-          para('git <svn-admin@ruby-lang.org>')),
-        list(:BULLET, item(nil, para('2021-01-20 [ci skip]')))))
+      head(3, '2021-01-20 01:58:26 +0900 git <svn-admin@ruby-lang.org>'),
+      list(:BULLET, item(nil, para('2021-01-20 [ci skip]'))))
 
     expected.file = @top_level