patch 8.2.1535: it is not possible to specify cell widths of characters

Problem:    It is not possible to specify cell widths of characters.
Solution:   Add setcellwidths().
diff --git a/src/version.c b/src/version.c
index 21c6a18..88332a0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1535,
+/**/
     1534,
 /**/
     1533,