patch 8.2.2250: Vim9: sublist is ambiguous

Problem:    Vim9: sublist is ambiguous.
Solution:   Require white space around the colon. (closes #7409)
diff --git a/src/version.c b/src/version.c
index d78ef0f..a74a5d9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2250,
+/**/
     2249,
 /**/
     2248,