Tag: doc-base-invalid-document-field
Severity: error
Check: menus
Explanation: The <code>Document</code> field should consist only of lowercase letters
 (<code>a-z</code>), digits (<code>0-9</code>), the plus sign (<code>+</code>),
 the minus sign (<code>-</code>) sign, or dots (<code>.</code>).
 .
 Uppercase letters are not allowed.
See-Also:
 doc-base-manual 2.2