修复 “‘查看差别’页面中，HTML标签未清除”的BUG

app/views/journals/diff.html.erb

@@ -2,7 +2,8 @@
 <p>由<%= @journal.user %> 更新于 <%= format_time @journal.created_on %></p>
 
 <div class="text-diff" style="word-break:break-all; word-wrap:break-word;">
-  <%= @diff.to_html.gsub("&lt;","<").gsub("&gt;",">").gsub("&quot;","\"").gsub("&amp;gt;", ">").gsub("&amp;lt;", "<").gsub("&amp;quot;", "\"").html_safe %>
+  <% @new = @diff.to_html.gsub("&amp;","&").gsub("&lt;","<").gsub("&gt;",">").gsub("&quot;","\"").html_safe %>
+  <%= @new.gsub("&amp;","&").gsub("&lt;","<").gsub("&gt;",">").gsub("&quot;","\"").gsub("/>"," ").html_safe %>
 </div>
 
 <p><%= link_to l(:button_back), issue_path(@issue), :onclick => 'history.back(); return false;' %></p>