patch 8.2.3248: Vim9: error message for wrong input uses wrong line number

Problem:    Vim9: error message for wrong input uses wrong line number.
Solution:   Use the line number of the start of the command. (issue #8653)
diff --git a/src/version.c b/src/version.c
index c120a2b..9510569 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3248,
+/**/
     3247,
 /**/
     3246,