patch 8.1.0335: mkview test fails on CI

Problem:    mkview test fails on CI.
Solution:   Attempt to force recomputing curswant after folding.
diff --git a/src/version.c b/src/version.c
index db1f8e2..b5cfc67 100644
--- a/src/version.c
+++ b/src/version.c
@@ -795,6 +795,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    335,
+/**/
     334,
 /**/
     333,