More changed for IMv7 CLI interface (half of SimpleOperators)

diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index 546e525..c7781c0 100644
--- a/MagickCore/effect.c
+++ b/MagickCore/effect.c
@@ -1296,6 +1296,7 @@
     return(convolve_image);
   /*
     Convolve image.
+    FUTURE: Use Morphology Convolve instead.
   */
   center=(ssize_t) GetPixelChannels(image)*(image->columns+kernel_info->width)*
     (kernel_info->height/2L)+GetPixelChannels(image)*(kernel_info->width/2L);