examples/rxtx_callbacks: fix port ID format specifier

[ upstream commit 7861009 ]

This fixes -Wformat warning with clang 10.0.0 on Windows.

Fixes: f8244c6 ("ethdev: increase port id range")

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>

examples/rxtx_callbacks/main.c

@@ -329,7 +329,7 @@ main(int argc, char *argv[])
 	/* initialize all ports */
 	RTE_ETH_FOREACH_DEV(portid)
 		if (port_init(portid, mbuf_pool) != 0)
-			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8"\n",
+			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16"\n",
 					portid);
 
 	if (rte_lcore_count() > 1)