Improve doc string of 'highlight-nonselected-windows'

* src/xdisp.c (syms_of_xdisp) <highlight-nonselected-windows>:
Clarify the doc string.  (Bug#51927)

diff --git a/src/xdisp.c b/src/xdisp.c
index c05e7edbc97bc92737e1f5d02e92da9cc4d96baa..0316408d92794291b836b88324188358e9ed9160 100644 (file)
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -35205,7 +35205,9 @@ line number may be omitted from the mode line.  */);
   line_number_display_limit_width = 200;
 
   DEFVAR_BOOL ("highlight-nonselected-windows", highlight_nonselected_windows,
-    doc: /* Non-nil means highlight region even in nonselected windows.  */);
+    doc: /* Non-nil means highlight active region even in nonselected windows.
+When nil (the default), the active region is only highlighted when
+the window is selected.  */);
   highlight_nonselected_windows = false;
 
   DEFVAR_BOOL ("multiple-frames", multiple_frames,