patch 8.2.4792: indent operator creates an undo entry for every line

Problem:    Indent operator creates an undo entry for every line.
Solution:   Create one undo entry for all lines. (closes #10227)
diff --git a/src/version.c b/src/version.c
index b00e0e8..82d10a2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4792,
+/**/
     4791,
 /**/
     4790,