ukify: fix backend/option applicability docs

The `SecureBootPrivateKey` and `SecureBootCertificate` options are used
by the `systemd-sbsign` backend, not just the `sbsign` backend.

(cherry picked from commit fafe447dcdf13a61ef262f16015130b21453ef6a)

diff --git a/man/ukify.xml b/man/ukify.xml
index 15cd35bcf5a47127b7035d8e7de423cb4afdbdd5..d3cfc0a4f721bc251a40e0cf342ca6e8f47c4298 100644 (file)
--- a/man/ukify.xml
+++ b/man/ukify.xml
@@ -490,7 +490,8 @@
           <varname>SigningEngine=</varname>/<option>--signing-engine=</option> or
           <varname>SigningProvider=</varname>/<option>--signing-provider=</option> option is used, this may
           also be an engine or provider specific designation. This option is required by
-          <varname>SecureBootSigningTool=sbsign</varname>/<option>--signtool=sbsign</option>. </para>
+          <varname>SecureBootSigningTool=sbsign</varname>/<option>--signtool=sbsign</option> and
+          <varname>SecureBootSigningTool=systemd-sbsign</varname>/<option>--signtool=systemd-sbsign</option>. </para>
 
           <xi:include href="version-info.xml" xpointer="v253"/></listitem>
         </varlistentry>
@@ -503,7 +504,8 @@
           <varname>SigningEngine=</varname>/<option>--signing-engine=</option> or
           <varname>SigningProvider=</varname>/<option>--signing-provider=</option> option is used, this may
           also be an engine or provider specific designation. This option is required by
-          <varname>SecureBootSigningTool=sbsign</varname>/<option>--signtool=sbsign</option>. </para>
+          <varname>SecureBootSigningTool=sbsign</varname>/<option>--signtool=sbsign</option> and
+          <varname>SecureBootSigningTool=systemd-sbsign</varname>/<option>--signtool=systemd-sbsign</option>. </para>
 
           <xi:include href="version-info.xml" xpointer="v253"/></listitem>
         </varlistentry>