BUG/MINOR: ssl/cli: initialize fcount int crtlist_entry

Initialize fcount to 0 when 'add ssl crt-list' does not contain any
filters. This bug can lead to trying to read some filters even if they
doesn't exist.
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index 7be6d1c..bf6205f 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -11400,6 +11400,7 @@
 		memprintf(&err, "Not enough memory!");
 		goto error;
 	}
+	entry->fcount = 0;
 	entry->filters = NULL;
 	entry->ssl_conf = NULL;