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/runtime/doc/options.txt b/runtime/doc/options.txt
index b463e75..de8dd48 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -701,7 +701,9 @@
"double": Use twice the width of ASCII characters.
*E834* *E835*
The value "double" cannot be used if 'listchars' or 'fillchars'
- contains a character that would be double width.
+
+ The values are overruled for characters specified with
+ |setcellwidths()|.
There are a number of CJK fonts for which the width of glyphs for
those characters are solely based on how many octets they take in