only show date, not hours, show 'laast aangepast op' instead of geschreven op

layouts/blogpost.erb

@@ -28,7 +28,7 @@
     <% end %>
     <div class="details animated fadeInRight">
       <small>
-        Geschreven op <%= gitmtime %><br>
+        Laatst aangepast op <%= gitmtime %><br>
         Leestijd: <%= reading_time @item %>
       </small>
     </div>

lib/helpers/blog.rb

@@ -27,13 +27,13 @@ module BlogHelper
   end
 
   def gitmtime
-    # find file extension
+    # find file last modification time
     filepath=@item[:content_filename]
-    str=`git log -1 --format='%ci' -- #{filepath}`
+    str=`git log -1 --format=%cd --date=short -- #{filepath}`
     if str == ""
         return @item[:created_at]
     else
-        return DateTime.parse( str )
+        return str
     end
 end
 end