core: fixes for RandomizedOffsetSec= feature (#37981)

Fixes: #37870
Follow-up for: #36437

man/org.freedesktop.systemd1.xml

@@ -12266,6 +12266,7 @@ $ gdbus introspect --system --dest org.freedesktop.systemd1 \
     <refsect2>
       <title>Timer Objects</title>
       <para><varname>DeferReactivation</varname> was added in version 257.</para>
+      <para><varname>RandomizedOffsetUSec</varname> was added in version 258.</para>
     </refsect2>
   </refsect1>
 

src/shared/bus-unit-util.c

@@ -2687,7 +2687,8 @@ static int bus_append_timer_property(sd_bus_message *m, const char *field, const
                 return bus_append_parse_boolean(m, field, eq);
 
         if (STR_IN_SET(field, "AccuracySec",
-                              "RandomizedDelaySec"))
+                              "RandomizedDelaySec",
+                              "RandomizedOffsetSec"))
                 return bus_append_parse_sec_rename(m, field, eq);
 
         if (STR_IN_SET(field, "OnActiveSec",

tools/dbus_ignorelist

@@ -2044,7 +2044,6 @@ org.freedesktop.systemd1.Timer.OnClockChange
 org.freedesktop.systemd1.Timer.OnTimezoneChange
 org.freedesktop.systemd1.Timer.Persistent
 org.freedesktop.systemd1.Timer.RandomizedDelayUSec
-org.freedesktop.systemd1.Timer.RandomizedOffsetUSec
 org.freedesktop.systemd1.Timer.RemainAfterElapse
 org.freedesktop.systemd1.Timer.Result
 org.freedesktop.systemd1.Timer.TimersCalendar