[gnome-calculator/wip-gtk4-port] Fixed typo

[Robert Roth <robertroth src gnome org>]

commit 13f09c93b95b6247f456eb59622ba12b20671151
Author: Robert Roth <robert roth off gmail com>
Date:   Fri Oct 1 07:26:38 2021 +0300

    Fixed typo

 src/math-function-popover.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/math-function-popover.vala b/src/math-function-popover.vala
index ff927148..fd82ea1f 100644
--- a/src/math-function-popover.vala
+++ b/src/math-function-popover.vala
@@ -46,7 +46,7 @@ public class MathFunctionPopover : Gtk.Popover
         }
 
         function_manager.function_added.connect ((function) => {
-            model.insert_sorted (function, function_compares);
+            model.insert_sorted (function, function_compare);
         });
         function_manager.function_edited.connect ((function) => {
             uint position;