runtime(doc): update documentation on tabstop settings
Unify the treatment of tabstop, correct errors and deprecate smarttab
usage.
closes: #17444
Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/vi_diff.txt b/runtime/doc/vi_diff.txt
index b35fe77..f694df8 100644
--- a/runtime/doc/vi_diff.txt
+++ b/runtime/doc/vi_diff.txt
@@ -1,4 +1,4 @@
-*vi_diff.txt* For Vim version 9.1. Last change: 2025 Jun 02
+*vi_diff.txt* For Vim version 9.1. Last change: 2025 Jun 10
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1102,7 +1102,7 @@
'shiftwidth' 'sw' number of spaces to use for (auto)indent step
'showmatch' 'sm' briefly jump to matching bracket if insert one
'showmode' 'smd' message on status line to show current mode
-'tabstop' 'ts' number of spaces that <Tab> in file uses
+'tabstop' 'ts' number of columns between two tab stops
'taglength' 'tl' number of significant characters for a tag
'tags' 'tag' list of file names used by the tag command
{Vi: default is "tags /usr/lib/tags"}