patch 9.1.1388: Scrolling one line too far with 'nosmoothscroll' page scrolling

Problem:  One-off error in "count" to make "w_skipcol" zero with
          'nosmoothscroll' page scrolling when last virtual line
          in a buffer line is exactly the entire window width.
          (Hirohito Higashi)
Solution: Properly compute the smallest integer value necessary
          to make "w_skipcol" zero (Luuk van Baal)

fixes: #17317
closes: #17318

Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 7e6e862..89c9fb0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1388,
+/**/
     1387,
 /**/
     1386,