patch 9.0.1189: invalid memory access with folding and using "L"

Problem:    Invalid memory access with folding and using "L".
Solution:   Prevent the cursor from moving to line zero.

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1189,
 /**/
     1188,
 /**/