[gtksourceview] testwidget: allow wider right margin

[Christian Hergert <chergert src gnome org>]

commit 317bc6b09e3d5aae2c7ea1b6d3ead25d1f9c7a19
Author: Christian Hergert <chergert redhat com>
Date:   Thu Oct 14 15:34:18 2021 -0700

    testwidget: allow wider right margin

 tests/test-widget.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/test-widget.ui b/tests/test-widget.ui
index 496684fe..0b030e2c 100644
--- a/tests/test-widget.ui
+++ b/tests/test-widget.ui
@@ -10,7 +10,7 @@
   </object>
   <object class="GtkAdjustment" id="adjustment_right_margin">
     <property name="lower">1</property>
-    <property name="upper">100</property>
+    <property name="upper">200</property>
     <property name="value">80</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>