patch 8.0.0238: bracketed paste does not disable autoindent

Problem:    When using bracketed paste autoindent causes indent to be
            increased.
Solution:   Disable 'ai' and set 'paste' temporarily. (Ken Takata)
diff --git a/src/version.c b/src/version.c
index 68ea529..d895216 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    238,
+/**/
     237,
 /**/
     236,