It's a good thing. I agree with you, most likely the problem is not in sentences. Here is the complete code cpnav file:
HTML Code:
<?xml version="1.0" encoding="ISO-8859-1"?>
<navgroups product="wb_complaint">
<navgroup phrase="wbcomplaint_settings" hr="true" permissions="canadminsettings" displayorder="1">
<navoption displayorder="10">
<phrase>wb_complaint_edit_text</phrase>
<link>wb_complaint.php?action=edit_text</link>
</navoption>
<navoption displayorder="20">
<phrase>wb_complaint_edit_emails</phrase>
<link>wb_complaint.php?action=edit_email</link>
</navoption>
</navgroup>
</navgroups>
I wonder what if I leave the first line cpnav file is empty, the menu item is added. As soon as I'm writing a file from the first line item is not add.