patch 8.1.0901: index in getjumplist() may be wrong

Problem:    Index in getjumplist() may be wrong. (Epheien)
Solution:   Call cleanup_jumplist() earlier. (Yegappan Lakshmanan,
            closes #3941)
diff --git a/src/version.c b/src/version.c
index b02be7c..998f259 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    901,
+/**/
     900,
 /**/
     899,