patch 8.1.0657: get error for using regexp recursively

Problem:    Get error for using regexp recursively. (Dominique Pelle)
Solution:   Do no check if connection is desired.
diff --git a/src/version.c b/src/version.c
index a49edb7..5852ce7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -800,6 +800,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    657,
+/**/
     656,
 /**/
     655,