patch 8.1.1835: cannot use printf() as a method

Problem:    Cannot use printf() as a method.
Solution:   Pass the base as the second argument to printf().
diff --git a/src/version.c b/src/version.c
index 2d06c77..f10ea08 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1835,
+/**/
     1834,
 /**/
     1833,