Fix uitest failure

It doesn't break for me locally

Change-Id: I61957fe4e7699937d17b74e8655efe2a6d1f6e6a
Reviewed-on: https://gerrit.libreoffice.org/38502Tested-by: Michael Stahl <mstahl@redhat.com>
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>

uitest/writer_tests/insertBreakDialog.py

@@ -55,7 +55,7 @@ class WriterInsertBreakDialog(UITestCase):
 
         self.ui_test.create_doc_in_start_center("writer")
 
-        for i in range(11):
+        for i in range(9):
             xDialog = self.launch_dialog_and_select_option("pagerb")
 
             xStyleList = xDialog.getChild("stylelb")