[gtk/arnaudb/better-substitution] Fix tests for margin-left and margin-right.

[Arnaud B. <arnaudb src gnome org>]

commit 7e306614f58fa93489706f319f66fe4f4b887173
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sun Apr 12 18:41:42 2020 +0200

    Fix tests for margin-left and margin-right.

 testsuite/tools/simplify-data-3to4/office-runner.expected | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/testsuite/tools/simplify-data-3to4/office-runner.expected 
b/testsuite/tools/simplify-data-3to4/office-runner.expected
index 80d6e36587..cf10373072 100644
--- a/testsuite/tools/simplify-data-3to4/office-runner.expected
+++ b/testsuite/tools/simplify-data-3to4/office-runner.expected
@@ -7,8 +7,8 @@
     <property name="window_position">center</property>
     <child>
       <object class="GtkBox" id="box1">
-        <property name="margin_left">12</property>
-        <property name="margin_right">12</property>
+        <property name="margin_start">12</property>
+        <property name="margin_end">12</property>
         <property name="margin_bottom">12</property>
         <property name="orientation">vertical</property>
         <property name="spacing">12</property>