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-rw-r--r--src/buffer.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/buffer.c b/src/buffer.c
index 9836ecc4db0..9e7b71805b8 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5523,14 +5523,16 @@ window-systems. */);
doc: /* *If a number, scroll display up aggressively.
If scrolling a window because point is below the window end, choose
a new window start so that point ends up that fraction of the window's
-height from the bottom of the window. */);
+height from the bottom of the window. Meaningful values are
+between 0.0 and 1.0, inclusive. */);
DEFVAR_PER_BUFFER ("scroll-down-aggressively",
&current_buffer->scroll_down_aggressively, Qnil,
doc: /* *If a number, scroll display down aggressively.
If scrolling a window because point is above the window start, choose
a new window start so that point ends up that fraction of the window's
-height from the top of the window. */);
+height from the top of the window. Meaningful values are
+between 0.0 and 1.0, inclusive. */);
/*DEFVAR_LISP ("debug-check-symbol", &Vcheck_symbol,
"Don't ask.");