patch 8.1.1686: "*" of "*{" is recognized as multipy operator

Problem:    "*" of "*{" is recognized as multipy operator. (Yasuhiro Matsumoto)
Solution:   Check for the "{".
diff --git a/src/version.c b/src/version.c
index 21dc66e..66f3d34 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1686,
+/**/
     1685,
 /**/
     1684,