[devel] Updated comments that mention 1.5.3; changed them to 1.5.4.
diff --git a/png.c b/png.c
index 03e5a1e..360db40 100644
--- a/png.c
+++ b/png.c
@@ -2385,7 +2385,7 @@
      png_ptr->gamma_shift = shift;
 
 #ifdef PNG_16BIT_SUPPORTED
-     /* NOTE: prior to 1.5.3 this test used to include PNG_BACKGROUND (now
+     /* NOTE: prior to 1.5.4 this test used to include PNG_BACKGROUND (now
       * PNG_COMPOSE).  This effectively smashed the background calculation for
       * 16-bit output because the 8-bit table assumes the result will be reduced
       * to 8 bits.