test/hash: fix creation error log

[ upstream commit 1afb336d8510cb9e28ca5cc25af3bb95698528c8 ]

Caught while running meson test:
hash creation failedTest Failed

Add missing \n.

Fixes: 0eb3726 ("test/hash: add test for read/write concurrency")

Signed-off-by: Min Zhou <zhoumin@loongson.cn>

app/test/test_hash_readwrite.c

@@ -162,7 +162,7 @@ init_params(int use_ext, int use_htm, int rw_lf, int use_jhash)
 
 	handle = rte_hash_create(&hash_params);
 	if (handle == NULL) {
-		printf("hash creation failed");
+		printf("hash creation failed\n");
 		return -1;
 	}