man/shadow.5.xml: Document "*"

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/man/shadow.5.xml b/man/shadow.5.xml
index dc7fdfde542ff588d3dad3b1c29fc3243c0aa1f0..d3cc03982c47d8a7766a31c3492d6fd7b2afddc0 100644 (file)
--- a/man/shadow.5.xml
+++ b/man/shadow.5.xml
@@ -82,8 +82,12 @@
            If the password field begins with an exclamation mark <emphasis>!</emphasis>,
            the password is locked.
            The remaining characters on the
-           line represent the password field before the password was
-           locked.
+           line represent the password hash.
+         </para>
+         <para>
+           If the password hash consists of a star <emphasis>*</emphasis>,
+           password access is effectively disallowed;
+           this is because no password can produce a hash like this.
          </para>
          <para>
            Refer to <citerefentry><refentrytitle>crypt</refentrytitle>