page-server: introduce the --daemon long option

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

crtools.c

@@ -91,6 +91,7 @@ int main(int argc, char *argv[])
 			{ "leave-stopped", no_argument, 0, 's' },
 			{ "leave-running", no_argument, 0, 'R' },
 			{ "restore-detached", no_argument, 0, 'd' },
+			{ "daemon", no_argument, 0, 'd' },
 			{ "contents", no_argument, 0, 'c' },
 			{ "file", required_argument, 0, 'f' },
 			{ "images-dir", required_argument, 0, 'D' },
@@ -415,7 +416,7 @@ usage:
 "Page server options\n"
 "  --address ADDR        address of page server\n"
 "  --port PORT           port of page server\n"
-"  -d                    run in the background after creating socket\n"
+"  -d|--daemon           run in the background after creating socket\n"
 "\n"
 "Show options:\n"
 "  -f|--file FILE        show contents of a checkpoint file\n"

test/zdtm.sh

@@ -350,7 +350,7 @@ EOF
 	mkdir -p $ddump
 
 	if [ $PAGE_SERVER -eq 1 ]; then
-		$CRTOOLS page-server -D $ddump -o page_server.log -v 4 --port $PS_PORT -d
+		$CRTOOLS page-server -D $ddump -o page_server.log -v 4 --port $PS_PORT --daemon
 		PS_PID=$!
 		opts="--page-server --address 127.0.0.1 --port $PS_PORT"
 	fi