Fix problem reported by latest Coverity scan.
It won't have a direct impact on anything.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>

** CID 120412:  Code maintainability issues  (SIZEOF_MISMATCH)
/examples/ip_pipeline/thread_fe.c: 338 in app_pipeline_thread_cmd_push()

*** CID 120412:  Code maintainability issues  (SIZEOF_MISMATCH)
/examples/ip_pipeline/thread_fe.c: 338 in app_pipeline_thread_cmd_push()
332             /* Check for available slots in the application commands array 
*/
333             n_cmds = RTE_DIM(thread_cmds) - 1;
334             if (n_cmds > APP_MAX_CMDS - app->n_cmds)
335                     return -ENOMEM;
336
337             /* Push thread commands into the application */
>>>     CID 120412:  Code maintainability issues  (SIZEOF_MISMATCH)
>>>     Passing argument "&app->cmds[app->n_cmds]" of type "cmdline_parse_ctx_t 
>>> *" and argument "n_cmds * 8UL /* sizeof (cmdline_parse_ctx_t *) */" to 
>>> function "memcpy" is suspicious. In this case, "sizeof (cmdline_parse_ctx_t 
>>> *)" is equal to "sizeof (cmdline_parse_ctx_t)", but this is not a portable 
>>> assumption.
338             memcpy(&app->cmds[app->n_cmds],
339                             thread_cmds,
340                     n_cmds * sizeof(cmdline_parse_ctx_t *));
341
342             for (i = 0; i < n_cmds; i++)
343                     app->cmds[app->n_cmds + i]->data = app;
---
 examples/ip_pipeline/thread_fe.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/examples/ip_pipeline/thread_fe.c b/examples/ip_pipeline/thread_fe.c
index 7a3bbf8..95f0107 100644
--- a/examples/ip_pipeline/thread_fe.c
+++ b/examples/ip_pipeline/thread_fe.c
@@ -335,9 +335,8 @@ app_pipeline_thread_cmd_push(struct app_params *app)
                return -ENOMEM;

        /* Push thread commands into the application */
-       memcpy(&app->cmds[app->n_cmds],
-                       thread_cmds,
-               n_cmds * sizeof(cmdline_parse_ctx_t *));
+       memcpy(&app->cmds[app->n_cmds], thread_cmds,
+               n_cmds * sizeof(cmdline_parse_ctx_t));

        for (i = 0; i < n_cmds; i++)
                app->cmds[app->n_cmds + i]->data = app;
-- 
2.1.4

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