core/dbus: pass transient unit name metadata to polkit

Fixes #17224

src/core/dbus-manager.c

@@ -30,6 +30,7 @@
 #include "format-util.h"
 #include "initrd-util.h"
 #include "install.h"
+#include "locale-util.h"
 #include "log.h"
 #include "manager-dump.h"
 #include "os-util.h"
@@ -1083,7 +1084,13 @@ static int method_start_transient_unit(sd_bus_message *message, void *userdata,
         if (mode < 0)
                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s is invalid.", smode);
 
-        r = bus_verify_manage_units_async(m, message, error);
+        r = bus_verify_manage_units_async_impl(
+                        m,
+                        name,
+                        "start",
+                        N_("Authentication is required to start transient '$(unit)'."),
+                        message,
+                        error);
         if (r < 0)
                 return r;
         if (r == 0)