man: Update chage -d -E options

diff --git a/man/chage.1.xml b/man/chage.1.xml
index ec469508be61caac7c78974cc105a5b6cf60f026..a7596b3f031014df0691f7690937e4564b0cf378 100644 (file)
--- a/man/chage.1.xml
+++ b/man/chage.1.xml
@@ -75,12 +75,18 @@
        </term>
        <listitem>
          <para>
-           Set the number of days since 1970-01-01 when the password
-           was last changed. The date may also be expressed in the format
-           YYYY-MM-DD.
-           If the <replaceable>LAST_DAY</replaceable> is set to
-           <emphasis>0</emphasis> the user is forced to change his password
-           on the next log on.
+           Set the date when the password was last changed.
+           The value can be specified as a date in the YYYY-MM-DD format
+           or as a number of days since 1970-01-01.
+           The date is interpreted using the UTC timezone.
+           If the <replaceable>LAST_DAY</replaceable>
+           is set to <emphasis>0</emphasis>,
+           the user is forced to change their password upon the next login.
+         </para>
+         <para>
+           Passing the value <emphasis>-1</emphasis> or an empty string
+           as the <replaceable>LAST_DAY</replaceable>
+           clears the value and removes the password change requirement.
          </para>
        </listitem>
       </varlistentry>
@@ -90,24 +96,26 @@
        </term>
        <listitem>
          <para>
-           Set the date or number of days since 1970-01-01 on which the
-           user's account will no longer be accessible. The date may also
-           be expressed in the format YYYY-MM-DD.
-           A user whose account is locked must
-           contact the system administrator before being able to use the
-           system again.
+           Set the date on which the user's password expires
+           and their account will no longer be accessible.
+           The value can be specified as a date in the YYYY-MM-DD format
+           or as a number of days since 1970-01-01.
+           The date is interpreted using the UTC timezone.
+           If the password expires,
+           the user must contact the system administrator
+           to regain access to the system.
          </para>
          <para>
-           For example the following can be used to set an account to expire
+           For example, the following command sets an account to expire
            in 180 days:
          </para>
          <programlisting>
            chage -E $(date -d +180days +%F)
          </programlisting>
          <para>
-           Passing the number <emphasis remap='I'>-1</emphasis> as the
-           <replaceable>EXPIRE_DATE</replaceable> will remove an account
-           expiration date.
+           Passing the value <emphasis remap='I'>-1</emphasis>
+           or an empty string as the <replaceable>EXPIRE_DATE</replaceable>
+           removes the account expiration date.
          </para>
        </listitem>
       </varlistentry>