emacs-28 67400da412: Improve doc strings of fringe indicator variables

[Eli Zaretskii]

branch: emacs-28
commit 67400da412d8939a42ad6b88c9e6a07979a8f46f
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Improve doc strings of fringe indicator variables
    
    * src/buffer.c (syms_of_buffer): Fix doc strings of
    'indicate-empty-lines' and 'indicate-buffer-boundaries'.
---
 src/buffer.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/buffer.c b/src/buffer.c
index eca2843e2b..32982976d2 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -6018,15 +6018,16 @@ specifies.  */);
 
   DEFVAR_PER_BUFFER ("indicate-empty-lines",
                     &BVAR (current_buffer, indicate_empty_lines), Qnil,
-                    doc: /* Visually indicate empty lines after the buffer end.
-If non-nil, a bitmap is displayed in the left fringe of a window on
-window-systems.  */);
+                    doc: /* Visually indicate unused ("empty") screen lines 
after the buffer end.
+If non-nil, a bitmap is displayed in the left fringe of a window
+on graphical displays for each screen line that doesn't correspond
+to any buffer text.  */);
 
   DEFVAR_PER_BUFFER ("indicate-buffer-boundaries",
                     &BVAR (current_buffer, indicate_buffer_boundaries), Qnil,
                     doc: /* Visually indicate buffer boundaries and scrolling.
 If non-nil, the first and last line of the buffer are marked in the fringe
-of a window on window-systems with angle bitmaps, or if the window can be
+of a window on graphical displays with angle bitmaps, or if the window can be
 scrolled, the top and bottom line of the window are marked with up and down
 arrow bitmaps.