patch mdb_var_alloc

@@ -1561,15 +1561,10 @@
          * Not all objects have CTF and label data, so set version to "Unknown".
          */
         if (version == NULL)
                 version = "Unknown";
 
-        /*
-         * The hash table implementation in OVERLOAD mode limits the version
-         * name to 31 characters because we cannot specify an external name.
-         * The full version name is available via the ::objects dcmd if needed.
-         */
         (void) mdb_nv_insert(vers_nv, version, NULL, (uintptr_t)objname,
             MDB_NV_OVERLOAD);
 
         return (0);
 }