man (useradd): add a note about -r option and /etc/subuid and subgid

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

diff --git a/man/useradd.8.xml b/man/useradd.8.xml
index 725882cd999b65aac94b9495f625080c4f70615d..d82001fa1b03cf46e065a6f7c07f535e76f0b5a9 100644 (file)
--- a/man/useradd.8.xml
+++ b/man/useradd.8.xml
@@ -464,6 +464,10 @@
            <option>-m</option> options if you want a home directory for a
            system account to be created.
          </para>
+         <para>
+           Note that this option will not update <filename>/etc/subuid
+           </filename> and <filename>/etc/subgid</filename>.
+         </para>
        </listitem>
       </varlistentry>
       <varlistentry>