patch 7.4.1909
Problem:    Doubled semicolons.
Solution:   Reduce to one. (Dominique Pelle)
diff --git a/src/fold.c b/src/fold.c
index 8b9ca35..e4c7f41 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -153,7 +153,7 @@
     int		use_level = FALSE;
     int		maybe_small = FALSE;
     garray_T	*gap;
-    int		low_level = 0;;
+    int		low_level = 0;
 
     checkupdate(win);
     /*