modules_k/siputils: added failure route to wrong function

- Credits to Alex Hermann.

modules_k/siputils/siputils.c

@@ -129,7 +129,7 @@ static cmd_export_t cmds[]={
 	{"add_uri_param",      (cmd_function)add_uri_param,     1, fixup_str_null,
 		0, REQUEST_ROUTE},
 	{"tel2sip", (cmd_function)tel2sip, 3, fixup_tel2sip, 0,
-	 REQUEST_ROUTE|ONREPLY_ROUTE},
+	 REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
 	{"is_e164",            (cmd_function)is_e164,           1, fixup_pvar_null,
 		fixup_free_pvar_null, REQUEST_ROUTE|FAILURE_ROUTE|LOCAL_ROUTE},
 	{"is_uri_user_e164",   (cmd_function)is_uri_user_e164,  1, fixup_pvar_null,
@@ -139,7 +139,7 @@ static cmd_export_t cmds[]={
 	{"decode_contact",     (cmd_function)decode_contact,    0, 0,
 		0, REQUEST_ROUTE},
 	{"decode_contact_header", (cmd_function)decode_contact_header, 0, 0,
-		0,REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE},
+		0,REQUEST_ROUTE|ONREPLY_ROUTE},
 	{"cmp_uri",  (cmd_function)w_cmp_uri,                   2, fixup_spve_spve,
 		0, ANY_ROUTE},
 	{"cmp_aor",  (cmd_function)w_cmp_aor,                   2, fixup_spve_spve,