patch 8.2.4540: line number for error is off by one

Problem:    Line number for error is off by one.
Solution:   Remember the line number of the comparison. (closes #9923)
diff --git a/src/version.c b/src/version.c
index b744932..2947790 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4540,
+/**/
     4539,
 /**/
     4538,