patch 9.1.0348: X11 does not ignore smooth scroll event

Problem:  X11 does not ignore smooth scroll event
          (laniakea64)
Solution: Correctly ignore unwanted smooth scroll events on X11
          (lilydjwg)

fixes #14578
closes: #14583

Signed-off-by: lilydjwg <lilydjwg@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/gui_gtk_x11.c

@@ -2152,6 +2152,9 @@ scroll_event(GtkWidget *widget,
 		    FALSE, vim_modifiers);
 	}
     }
+    else if (event->direction == GDK_SCROLL_SMOOTH && display_type == DT_X11)
+	// for X11 we deal with unsmooth events, and so ignore the smooth ones
+	;
     else
 #undef DT_X11
 #undef DT_WAYLAND

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    348,
 /**/
     347,
 /**/