Made OnVerticalScroll pass OnShow to FauxScrollFrame_OnVerticalScroll to avoid duplicating code

diff --git a/WeightsWatcher.xml b/WeightsWatcher.xml
index e73f778..f32bac1 100644
--- a/WeightsWatcher.xml
+++ b/WeightsWatcher.xml
@@ -82,7 +82,7 @@
 						scrollBarUpdate()
 					</OnShow>
 					<OnVerticalScroll>
-						FauxScrollFrame_OnVerticalScroll(self, offset, 20, scrollBarUpdate)
+						FauxScrollFrame_OnVerticalScroll(self, offset, 20, self:GetScript("OnShow"))
 					</OnVerticalScroll>
 				</Scripts>
 			</ScrollFrame>