patch 8.2.3392: augroup completion escapes regexp pattern characters

Problem:    augroup completion escapes regexp pattern characters.
Solution:   Do not escape the augroup name. (closes #8826)
diff --git a/src/version.c b/src/version.c
index b574d5d..9f67d79 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3392,
+/**/
     3391,
 /**/
     3390,