machined: use x-machine-unix prefix for the container bus on dbus1

bnf · poettering · commit f2273101c21b · 2015-03-01T12:01:16.000+01:00
This fixes "machinectl login" on systems configured with --disable-kdbus.

The error was:
machinectl login foo
Failed to get machine PTY: Input/output error
diff --git a/src/machine/machine-dbus.c b/src/machine/machine-dbus.c
@@ -511,7 +511,7 @@ int bus_machine_method_open_login(sd_bus *bus, sd_bus_message *message, void *us
 #ifdef ENABLE_KDBUS
         asprintf(&container_bus->address, "x-machine-kernel:pid=" PID_FMT ";x-machine-unix:pid=" PID_FMT, m->leader, m->leader);
 #else
-        asprintf(&container_bus->address, "x-machine-kernel:pid=" PID_FMT, m->leader);
+        asprintf(&container_bus->address, "x-machine-unix:pid=" PID_FMT, m->leader);
 #endif
         if (!container_bus->address)
                 return log_oom();
