patch 8.2.3627: difficult to know where the text starts in a window
Problem: difficult to know where the text starts in a window. (Sergey
Vlasov)
Solution: Add the "textoff" entry in the result of getwininfo().
(closes #9163)
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 593dcb5..1003010 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -6382,6 +6382,9 @@
otherwise
wincol leftmost screen column of the window;
"col" from |win_screenpos()|
+ textoff number of columns occupied by any
+ 'foldcolumn', 'signcolumn' and line
+ number in front of the text
winid |window-ID|
winnr window number
winrow topmost screen line of the window;