fix typo

svn:r6549

src/or/rendcommon.c

@@ -234,7 +234,7 @@ rend_get_service_id(crypto_pk_env_t *pk, char *out)
 /** How old do we let hidden service descriptors get discarding them as too
  * old? */
 #define REND_CACHE_MAX_AGE (2*24*60*60)
-/** How wrong to we assume our clock may be when checking whether hidden
+/** How wrong do we assume our clock may be when checking whether hidden
  * services are too old or too new? */
 #define REND_CACHE_MAX_SKEW (24*60*60)