tests: Add OK: and a new line to ssh_ping

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

tests/ssh_ping.c

@@ -57,7 +57,7 @@ int main(int argc, char **argv)
         goto out;
     }
 
-    printf("%s", banner);
+    printf("OK: %s\n", banner);
     rc = 0;
 
 out: