examples: normalize icc related program arguments

use 'icc' rather than 'iccp'.

Change-Id: I9667f286bfa1cfeb0ac49148ba341d268b051b98
diff --git a/examples/webpmux.c b/examples/webpmux.c
index a0f08ec..ce5bf90 100644
--- a/examples/webpmux.c
+++ b/examples/webpmux.c
@@ -196,7 +196,7 @@
   printf("Features present:");
   if (flag & ANIMATION_FLAG) printf(" animation");
   if (flag & FRAGMENTS_FLAG) printf(" image fragments");
-  if (flag & ICCP_FLAG)      printf(" icc profile");
+  if (flag & ICCP_FLAG)      printf(" ICC profile");
   if (flag & EXIF_FLAG)      printf(" EXIF metadata");
   if (flag & XMP_FLAG)       printf(" XMP metadata");
   if (flag & ALPHA_FLAG)     printf(" transparency");