Also skip text:density chunk found in a PNG datastream by the PNG decoder,

if a pHYs chunk is also present.

diff --git a/ChangeLog b/ChangeLog
index 19b0f96..0e7174d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,6 +6,8 @@
   * Don't write a PNG text chunk with "density" keyword that overrides the
     PNG pHYs chunk, if the pHYs chunk was not excluded (reference
     http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=18225).
+  * Ignore any PNG text chunk with a "density" keyword found by the PNG
+    decoder, if the PNG datastream also contains a pHYs chunk.
 
 2011-03-06  6.6.8-2 Cristy  <quetzlzacatenango@image...>
   * Support the Radiance HDR image format.