patch 8.2.4604: error for redefining a script item may be confusing

Problem:    Error for redefining a script item may be confusing.
Solution:   Put quotes around the name.
diff --git a/src/version.c b/src/version.c
index 3874b93..f5d7b32 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4604,
+/**/
     4603,
 /**/
     4602,