test/zdtm.sh: fix an error message

It's got not get.
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Acked-by: Andrew Vagin <avagin@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm.sh

@@ -388,7 +388,7 @@ run_test()
 
 	local ddump
 	if ! kill -s 0 "$PID"; then
-		echo "Get a wrong pid '$PID'"
+		echo "Got a wrong pid '$PID'"
 		return 1
 	fi