patch 8.2.3428: using freed memory when replacing

Problem:    Using freed memory when replacing. (Dhiraj Mishra)
Solution:   Get the line pointer after calling ins_copychar().
diff --git a/src/version.c b/src/version.c
index f82881f..2d6f6c7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3428,
+/**/
     3427,
 /**/
     3426,