patch 8.2.1599: missing line end when skipping a long line with :cgetfile

Problem:    Missing line end when skipping a long line with :cgetfile.
Solution:   Fix off-by-one error. (closes #6870)
diff --git a/src/version.c b/src/version.c
index b6a6f41..b7b5d27 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1599,
+/**/
     1598,
 /**/
     1597,