patch 8.0.0357: crash when setting 'guicursor' to weird value

Problem:    Crash when setting 'guicursor' to weird value.
Solution:   Avoid negative size. (Dominique Pelle, closes #1465)
diff --git a/src/version.c b/src/version.c
index 94a325b..2d076cc 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    357,
+/**/
     356,
 /**/
     355,