patch 8.2.5016: access before start of text with a put command

Problem:    Access before start of text with a put command.
Solution:   Check the length is more than zero.
diff --git a/src/version.c b/src/version.c
index 4682108..250b73e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5016,
+/**/
     5015,
 /**/
     5014,