factor: fix comment

diff --git a/src/factor.c b/src/factor.c
index f0ad10ffc62b91f1c8a7907af42efd5d555ca126..54eb9aa92cac04b5dca40265fdd8800717cff992 100644 (file)
--- a/src/factor.c
+++ b/src/factor.c
@@ -79,8 +79,8 @@
     * The redcify function could be vastly improved by using (plain Euclidean)
       pre-inversion (such as GMP's invert_limb) and udiv_qrnnd_preinv (from
       GMP's gmp-impl.h).  The redcify2 function could be vastly improved using
-      similar methods.  These functions currently dominate run time when using
-      the -w option.
+      similar methods.  These functions currently dominate run time when
+      PROVE_PRIMALITY is nonzero (the default).
 */
 
 /* Whether to recursively factor to prove primality,