patch 8.2.3474: some places use "Vimscript" instead of "Vim script"

Problem:    Some places use "Vimscript" instead of "Vim script".
Solution:   Consistently use "Vim script". (Hirohito Higashi, closes #8910)
diff --git a/src/version.c b/src/version.c
index 21aab4f..e927191 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3474,
+/**/
     3473,
 /**/
     3472,