Fix windows build

Fix error in WIN32_rename() introduced by commit b4faea50c35.

Reviewed-by: Rich Salz <rsalz@openssl.org>

apps/apps.c

diff --git a/apps/apps.c b/apps/apps.c
index 797e250..53b76e9 100644
--- a/apps/apps.c
+++ b/apps/apps.c
@@ -2365,7 +2365,7 @@
     } else {                    /* UNICODE path */
 
         size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
-        tfrom = malloc(*sizeof(*tfrom) * (flen + tlen));
+        tfrom = malloc(sizeof(*tfrom) * (flen + tlen));
         if (tfrom == NULL)
             goto err;
         tto = tfrom + flen;