Report wrong key sizes correctly

When we introduced NEED_KEY_1024 in routerparse.c back in
0.2.0.1-alpha, I forgot to add a *8 when logging the length of a
bad-length key.

Bugfix for 3318 on 0.2.0.1-alpha.

changes/bug3318

@@ -0,0 +1,3 @@
+  o Minor bugfixes:
+    - Fix a log message that said "bits" while displaying a value in
+      bytes. Fixes bug 3318; bugfix on 0.2.0.1-alpha.

src/or/routerparse.c

@@ -3767,7 +3767,7 @@ token_check_object(memarea_t *area, const char *kwd,
     case NEED_SKEY_1024: /* There must be a 1024-bit private key. */
       if (tok->key && crypto_pk_keysize(tok->key) != PK_BYTES) {
         tor_snprintf(ebuf, sizeof(ebuf), "Wrong size on key for %s: %d bits",
-                     kwd, (int)crypto_pk_keysize(tok->key));
+                     kwd, (int)crypto_pk_keysize(tok->key)*8);
         RET_ERR(ebuf);
       }
       /* fall through */