patch 9.1.0164: Internal error when passing invalid position to getregion()

Problem:  Internal error or crash when passing invalid position to
          getregion().
Solution: Give an error for invalid position (zeertzjq).

closes: #14172

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index d1ca31b..b46b355 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    164,
+/**/
     163,
 /**/
     162,