From: Eli Zaretskii <eliz@gnu.org>
Date: Thu, 15 Sep 2011 15:41:03 +0000 (+0300)
Subject: xdisp.c (hscroll_window_tree): Sync comment with the code.
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xdisp.c (hscroll_window_tree): Sync comment with the code.
---

diff --git a/src/xdisp.c b/src/xdisp.c
index 8adc83b5068..1ccaa0641b0 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -11916,9 +11916,9 @@ hscroll_window_tree (Lisp_Object window)
 		}
 	      hscroll = max (hscroll, XFASTINT (w->min_hscroll));
 
-	      /* Don't call Fset_window_hscroll if value hasn't
-		 changed because it will prevent redisplay
-		 optimizations.  */
+	      /* Don't will prevent redisplay optimizations if hscroll
+		 hasn't changed, as it will unnecessarily slow down
+		 redisplay.  */
 	      if (XFASTINT (w->hscroll) != hscroll)
 		{
 		  XBUFFER (w->buffer)->prevent_redisplay_optimizations_p = 1;