restorer: Shrink ns_last_pid_path size

No need for the big PATH_MAX here.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>

include/restorer.h

@@ -9,6 +9,7 @@
 #include "image.h"
 #include "lock.h"
 #include "util.h"
+#include "crtools.h"
 
 #ifndef CONFIG_X86_64
 # error Only x86-64 is supported
@@ -65,7 +66,7 @@ struct task_restore_core_args {
 	int				pid;			/* task pid */
 	int				fd_core;		/* opened core file */
 	int				fd_self_vmas;		/* opened file with running VMAs to unmap */
-	char				ns_last_pid_path[PATH_MAX];
+	char				ns_last_pid_path[sizeof(LAST_PID_PATH) + 1];
 	bool				restore_threads;	/* if to restore threads */
 	u32				rst_lock;