math/ec-prime.c: Fix commentary typo.

diff --git a/math/ec-prime.c b/math/ec-prime.c
index f6a7f96029885899a8da2fd9be9c327d0ff07b9f..c2ec28892dd59e54904c852d1dcf322fe0947817 100644 (file)
--- a/math/ec-prime.c
+++ b/math/ec-prime.c
@@ -267,7 +267,7 @@ static ec *ecprojadd(ec_curve *c, ec *d, const ec *a, const ec *b)
       }
     }
     u = F_ADD(f, u, u, uu);            /* %$t = uu + u$% */
-    s = F_ADD(f, s, s, ss);            /* %$m = ss + r$% */
+    s = F_ADD(f, s, s, ss);            /* %$m = ss + s$% */
 
     uu = F_MUL(f, uu, a->z, w);                /* %$z_0 w$% */
     dz = F_MUL(f, ss, uu, b->z);       /* %$z' = z_0 z_1 w$% */