[libpng16] Added "eXIf" to "chunks_to_ignore[]" in png_set_keep_unknown_chunks().
diff --git a/pngset.c b/pngset.c
index 0efebb0..184b4c4 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1402,6 +1402,7 @@
       static PNG_CONST png_byte chunks_to_ignore[] = {
          98,  75,  71,  68, '\0',  /* bKGD */
          99,  72,  82,  77, '\0',  /* cHRM */
+        101,  88,  73, 102, '\0',  /* eXIf */
         103,  65,  77,  65, '\0',  /* gAMA */
         104,  73,  83,  84, '\0',  /* hIST */
         105,  67,  67,  80, '\0',  /* iCCP */