fix bug in SwCTBWrapper::ImportCustomToolBar

the code structure here and at the callsite indicats that wants true to
mean "successfully imported"

Change-Id: Ibe3242e85ed970494c2ee0deb4b898db0fe85d0d
Reviewed-on: https://gerrit.libreoffice.org/59130
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sw/source/filter/ww8/ww8toolbar.cxx

@@ -205,7 +205,7 @@ bool SwCTBWrapper::ImportCustomToolBar( SfxObjectShell& rDocSh )
             continue;
         }
     }
-    return false;
+    return true;
 }
 
 Customization::Customization( SwCTBWrapper* wrapper )