Updated comment.

9e4456d5 · James Willis · 81ec76b6 · 9e4456d5
Commit 9e4456d5 authored Sep 24, 2018 by James Willis
--- a/configure.ac
+++ b/configure.ac
@@ -369,7 +369,7 @@ if test "$enable_opt" = "yes" ; then
         AC_MSG_WARN([Do not know how to disable vectorization for this compiler])
      fi
   elif test "$enable_hand_vec" = "yes"; then
-      AC_DEFINE([WITH_VECTORIZATION],1,[Enable vectorization])
+      AC_DEFINE([WITH_VECTORIZATION],1,[Enable hand-written vectorization])
      HAVEVECTORIZATION=1
   fi
 fi