runtime(doc): update vi_diff.txt: add default value for 'flash'
The "flash" option was added relatively late and seems to be exclusive
to System V. (It's not in 4.4BSD and it's not in V8 UNIX, checked [on
TUHS](https://www.tuhs.org/cgi-bin/utree.pl).) The oldest occurrence of
`flash` in "a vi" I could find is in SysV R2 for the VAX, where it
[defaults to
1](https://github.com/ryanwoodsmall/oldsysv/blob/master/sysvr2-vax/src/cmd/vi/vax/ex_data.c)
= on.
closes: #14778
Signed-off-by: Cthulhux <github@tuxproject.de>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/vi_diff.txt b/runtime/doc/vi_diff.txt
index 1714833..3bcee47 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: 2022 Apr 03
+*vi_diff.txt* For Vim version 9.1. Last change: 2024 May 15
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -49,7 +49,7 @@
autoprint (ap) boolean (default on) *'autoprint'* *'ap'*
beautify (bf) boolean (default off) *'beautify'* *'bf'*
-flash (fl) boolean (default ??) *'flash'* *'fl'*
+flash (fl) boolean (default on) *'flash'* *'fl'*
graphic (gr) boolean (default off) *'graphic'* *'gr'*
hardtabs (ht) number (default 8) *'hardtabs'* *'ht'*
number of spaces that a <Tab> moves on the display