patch 8.2.4749: <script> is not expanded in autocmd context

Problem:    <script> is not expanded in autocmd context.
Solution:   Add the context to the pattern struct. (closes #10144)
            Rename AutoPatCmd to AutoPatCmd_T.
diff --git a/src/version.c b/src/version.c
index e1a5bbd..40ed189 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4749,
+/**/
     4748,
 /**/
     4747,