patch 8.1.1179: no test for mouse clicks in the fold column

Problem:    No test for mouse clicks in the fold column.
Solution:   Add a test. (Dominique Pelle, closes #4261)
diff --git a/src/version.c b/src/version.c
index 585f2fd..87a4e47 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1179,
+/**/
     1178,
 /**/
     1177,