test: fix same socket names in socket-{dgram_data, snd_addr}

Those two tests use same socket name and if both of them are run
simultaneously, they would fight for socket and one will get EADDRINUSE.
This patch gives socket_dgram_data an unique name, so that everyone will
be happy.

travis-ci: success for test: fix same socket names in socket-{dgram_data, snd_addr}
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

test/zdtm/static/socket_dgram_data.c

@@ -11,7 +11,7 @@
 const char *test_doc	= "Check that data in dgram socket are restored correctly";
 const char *test_author	= "Andrew Vagin <avagin@openvz.org";
 
-#define SK_SRV "\0socket_snd_srv"
+#define SK_SRV "\0socket_dgram_srv"
 
 #define MSG "hello"
 int main(int argc, char **argv)