updated for version 7.3.020
Problem:    Cursor position wrong when joining multiple lines and
            'formatoptions' contains "a". (Moshe Kamensky)
Solution:   Adjust cursor position for skipped indent. (Carlo Teubner)
diff --git a/src/version.c b/src/version.c
index 38a0813..6d19c82 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    20,
+/**/
     19,
 /**/
     18,