options: Use union for @daemon and @restore_detach

They both are using 'd' option in different context
though, lets give them two names.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

crtools.c

@@ -558,10 +558,10 @@ int main(int argc, char *argv[], char *envp[])
 	}
 
 	if (!strcmp(argv[optind], "page-server"))
-		return cr_page_server(opts.restore_detach, -1) > 0 ? 0 : 1;
+		return cr_page_server(opts.daemon_mode, -1) > 0 ? 0 : 1;
 
 	if (!strcmp(argv[optind], "service"))
-		return cr_service(opts.restore_detach);
+		return cr_service(opts.daemon_mode);
 
 	if (!strcmp(argv[optind], "dedup"))
 		return cr_dedup() != 0;

include/cr_options.h

@@ -27,7 +27,10 @@ struct cr_options {
 	char			*show_fmt;
 	bool			check_ms_kernel;
 	bool			show_pages_content;
+	union {
 		bool		restore_detach;
+		bool		daemon_mode;
+	};
 	bool			restore_sibling;
 	bool			ext_unix_sk;
 	bool			shell_job;