[PATCH] make wording of ScrollDelta options clearer

[Zsolt Dollenstein]

---
 man/synaptics.man | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/man/synaptics.man b/man/synaptics.man
index 76756be..a40d2e7 100644
--- a/man/synaptics.man
+++ b/man/synaptics.man
@@ -154,12 +154,16 @@ Enable horizontal scrolling when dragging with two fingers anywhere on
 the touchpad. Property: "Synaptics Two-Finger Scrolling"
 .TP 7
 .BI "Option \*qVertScrollDelta\*q \*q" integer \*q
-Move distance of the finger for a scroll event. Property: "Synaptics Scrolling
-Distance"
+Distance your finger has to move for a vertical scroll event. Negative
+value inverts scroll direction. The bigger the absolute value, the
+slower the scroll effect. Max speed is 1, or -1 in reverse
+mode. Property: "Synaptics Scrolling Distance"
 .TP 7
 .BI "Option \*qHorizScrollDelta\*q \*q" integer \*q
-Move distance of the finger for a scroll event. Property: "Synaptics Scrolling
-Distance"
+Distance your finger has to move for a horizontal scroll
+event. Negative value inverts scroll direction. The bigger the
+absolute value, the slower the scroll effect. Max speed is 1, or -1 in
+reverse mode. Property: "Synaptics Scrolling Distance"
 .TP
 .BI "Option \*qMinSpeed\*q \*q" float \*q
 Minimum speed factor. Property: "Synaptics Move Speed"
-- 
2.0.0